Britain's Prince George is to tour Australia.
General Peter Cosgrove accidentally let slip that the eight-month-old tot will definitely be joining his mother and father, the duke and duchess of Cambridge, on their trip Down Under in April.
Speaking to Australian press, he said: "That's going to be a very welcome visit.
"They'll bring with them Prince George, the little one.
"They'll be in Sydney and then in Canberra after their sojourn in New Zealand.
"There's sort of an arm's distance hosting in the sense that we want them to be able to relax, so the idea would be to greet them, settle them in - but very briefly - and then leave them to enjoy the delights of Sydney."
The royal couple - who married in 2011 - had remained tight-lipped about whether their son would be joining them on the trip and were expected to announce the news nearer the time.
After General Cosgrove realised he may have said something he shouldn't have, he quickly added: "I hope he's [George] coming.
"I don't know - I'm not yet the governor-general.
"I think every Aussie who likes the idea of royal couples having their children with them on tour will hope that's the case, but let's wait and see."
Past generations of the royal family, including Queen Elizabeth, have always left their children at home with aides, but the tradition was broken when Prince Charles and his late wife Princess Diana took William with them to Australia in March 1983 when he was just nine months old.

Britain's Earl and Countess of Wessex took a private jet to St Mortiz.
The royal couple - who married in 1999 - and their two children Lady Louise,10, and James, six, flew to Switzerland earlier this week for a family ski trip, but decided against a low budget airline.
The royal family have been urged to use scheduled flights to reduce their carbon footprint and save money, but it is believed Prince Edward, 49, Sophie, 49, and their children were the only passengers on-board the plane, apart from two assistants.
It is not known who paid for the ski trip.
However, in 2002, Queen Elizabeth paid her son Edward and Sophie £250,000 to quit their careers to help her and her husband Prince Philip with their royal duties by attending more charity events.
Meanwhile, Prince William and his wife Duchess Catherine - who have eight-month-old son Prince George - took an EasyJet flight to the French Alps during their week-long ski trip in 2012.
The royal couple - who got married in 2011 - were then escorted off the plane, before driving back to their cottage in Wales in a swanky Range Rover.

Ant and Dec don't take their success for granted.
The 'Britain's Got Talent' and 'I'm a Celebrity ... Get Me Out of Here!' presenters won Best Entertainment Presenter at the National Television Awards last month for the thirteenth year in a row as well as the Landmark Award - which was awarded in recognition of their TV achievements over the last 25 years - but the duo claim they'll never get bored of receiving prizes.
Dec said: "We never take it for granted. We don't expect to win anything. We work hard on our shows and we hope people will want to watch them. People ask us, 'Does it get boring turning up to the NTAs and always winning', but it's the opposite."
The 38-year-old TV personality - whose full name is Declan Donnelly - also admitted that he's worried about the day when they no longer win awards.
He added: "It's nerve-wracking because, one of these days, we're not going to win it and someone else will be getting all the applause."
Meanwhile, Ant - full name Anthony McPartlin - thinks the pair have done so well in their career because, for the most part, they avoid the showbiz lifestyle.
He told The Sun newspaper: "We did our drinking away from all the paps. We get lots of invites to things but we didn't bother going. We don't do openings or premieres. Going to a premiere is like work.
"We're more pub and football guys rather walking the red carpets."

ITV has commissioned 'Mr Selfridge' for a third series.
The hit period drama starring Jeremy Piven will return for a new series next year, reports RadioTimes.com reports.
The show - which also stars Amanda Abbington and Katherine Kelly - is currently airing on Sunday nights, but has struggled in the ratings opposite BBC One's big budget action drama 'The Musketeers', which has also been picked up for a new series.
The news is sure to please fans of 'Mr Selfridge', which has been a huge hit for ITV along with 'Downton Abbey' and 'Broadchurch', and it seems lead actor Jeremy's family are among the show's biggest fans.
The 48-year-old star said previously: "The response to the first series was amazing. My mother is an acting teacher and it's the first time she has given me brilliant feedback about one of my shows. She loved it, as did my niece, who is eight years old. It's a show that appeals to all ages.
"I have been to Selfridges since the show aired and I have had some funny looks in there. Once a woman came up to me asking if I could talk to 'my staff' as she had a query about in-store manicures and pedicures. I still have no idea if she was joking or not!"

James Sutton has praised "brilliant" co-star Keith Rice.
The 'Hollyoaks' stars are embroiled in a harrowing sexual abuse storyline and James, who plays John Paul McQueen, thinks youngster Keith (Finn O'Connor) is doing a great job handling the sensitive subject matter.
He gushed: "Keith's brilliant. He's taking it so seriously. He's only a young lad and this is the first time he's had a really big storyline and he's taking it so seriously. He's been a delight, he really has."
James' character is at the centre of a male rape storyline and he and Keith, along with a host of other actors, have worked diligently to ensure the plot is tackled with care.
He exclusively explained to BANG Showbiz: "We talk a lot, Keith and I, and Charlie Wernham, who plays Robbie, and Lizzie Roper, who plays Sam, Steve Billington, who plays Danny ... that's my little clique at the moment. And also Diane Langton, who plays Nana McQueen. We all talk quite a lot about the scenes we're shooting, we always throw ideas around, and we tell the directors to make sure we don't leave anything to chance.
"We always make sure we're on the same page, which is really great to be part of a team like that where you're not afraid to suggest things to each other and help each other out, and we're very quick to tell each other when we've done something really good. It's really, really lovely."
'Hollyoaks' airs weeknights on Channel 4.

Kelle Bryan has found Eternal's reunion "cathartic".
'The Big Reunion' star - who was famously fired from the band by fax in 1998 - has got back together with sisters Easther and Vernie Bennett for the second series of the ITV2 reality show and admits the process has helped heal old grudges.
She said: "I feel like it's been quite cathartic, actually. This forced us to think about ourselves, our decisions, why we did what we did, and forced us to face it and deal with it.
"The interviews for the show have been like counselling sessions. No stone has been left unturned. I've been saying that if we didn't go on to do anything else after this, that initial chat when we first sat down together again and worked through all the stuff that caused the damage in the first place ... for me, it was all worth it. Anything else that comes now is just a bonus."
The 'I Wanna Be the Only One' hitmakers have "cleared the air" according to Vernie, who, along with sister Easther, hadn't spoken to Kelle since the group's demise in 2000.
Vernie told Gay Times magazine: "We're mature now. The mistake we made, we made because of who we were then. Nothing's going to change that. The reason why we're able to turn things around is because of who we are now. It's all about moving forward."

Oprah Winfrey "recharges" by being alone.
The 60-year-old talk show host - who has been in a relationship with author and speaker Stedman Graham since 1986 - is always content to be on her own and never worried about not having other people to do things with.
She said: "[My best friend] Gayle [King] will tell you, Stedman will tell you that I am really happy being with myself and my thoughts. Gayle will say, "What are you doing? Are you being alone with your thoughts?
"I really get recharged from being alone. I spend a lot of time - I mean Stedman's on the road a lot so I spend a lot of time with myself and the dogs and I really enjoy that because I never feel like, 'Oh gee, I don't have anybody to do anything with or..' and I spend more time alone than anybody would even imagine."
And when she is home alone, Oprah doesn't even need the background noise of her TV to keep her company.
Her friend Gayle said: She could live in a house and never turn on a TV. I can't imagine but it's true.
"I've been to her house sometimes and she doesn't even know how to turn on the TV, like 'Where is the remote?' She's just not one of these people that's a big TV watcher. So she's not -- it's not something that she's just saying. It's true."
However, the 'Butler' actress insists she couldn't live without her beloved books.
Speaking on 'Piers Morgan Live', she said: "Now, I'm content being alone but if you put me alone and they were no books around and there was no way to have any kind of, you know, engagement with the outside world through books that would be a very sad situation."

Charlie Sheen's new fianceé is already married.
The 'Anger Management' star got engaged to Brett Rossi earlier this month but he won't be able to make her his fourth wife for some time as she is in the process of divorcing her spouse Jonathan Ross.
Jonathan - who is representing himself in the proceedings - filed for divorce from the porn star on July 18 2013, but she didn't file a response until January 30 2014, two weeks before she got engaged to Charlie.
Brett - who had been married to Jonathan for a year - is being represented in the case by Charlie's lawyer Mark Gross, and insiders expect the proceedings to be resolved quite soon.
A source told RadarOnline.com: "The divorce between Brett and Jonathan is going to be finalised in the next few months, if not sooner. There isn't anything that is being contested."
Charlie - who already has grown-up daughter Cassandra with former girlfriend Paula Profitt, daughters Sam, nine, and Lola, eight, with second wife Denise Richards and twin sons Bob and Max, four, with former spouse Brooke Mueller - recently admitted he is "open" to having kids with his 24-year-old fiancee, but says they don't plan to do so just yet.
He said: "I'm having way too much fun with her right now. So much fun it should be illegal."
Charlie married for the first time in 1995, to Donna Peele, but they split a year later.

Katy Perry held a private party after the BRIT Awards last night (19.02.14).
The 'Roar' hitmaker - who had performed at the ceremony at London's The O2 earlier in the evening - was joined at the bash at The Box nightspot by stars including BBC Radio 1 presenter Nick Grimshaw, Lorde, Jessie J and Pixie Lott,
Katy dashed to the club from Universal Music and Soho House's after party at One Embankment in central London, where she played a 30-minute DJ set with BRIT winners Lorde and Ellie Goulding.
Nick, 29, was partying at Warner Music's bash at The Savoy Hotel, sponsored by Belvedere Vodka, before he announced he was heading to party with Katy.
He tried to drag pal Douglas Booth along before jumping into a taxi with a group of friends, which included comedian Jack Whitehall and Peaches Geldof.
Nick, who also hung out with Disclosure and Kate Moss while party-jumping during the night, later posted a photograph with Katy on his Instagram, along with the caption: "Mom & Dad are out for the night."
The presenter is rumoured to be in the running to replace James Corden as the host of the BRIT Awards next year.

Robbie Williams' dad is his "hero".
The 40-year-old star - who was catapulted to the spotlight in 90s boy band Take That alongside Gary Barlow, Howard Donald, Jason Orange and Mark Owen - insists his "charismatic" club singer father Peter Williams is a talented artist, but never got the same lucky break he did when he was younger.
Speaking on Australia's 'Today' show, he said: "My dad is incredibly charismatic and charming and a very good singer, he just didn't get the lucky break I got.
"When I was growing up he was my hero in many ways and the inspiration for the act that I do."
Robbie also gushed about being a father to 17-month-old daughter Theodora 'Teddy' Rose, and insists she is everything he needs.
He said:"I have all the love in the world now when I look at her [Teddy]."
And the 'Candy' hitmaker admitted his actress wife Ayda Field - who he married in August 2010 after four years together - has changed his life.
He said: "Life became gentler, easier and more beautiful after meeting her."

Arctic Monkeys don't feel their BRIT awards prove how talented they are.
The 'R U Mine?' hitmakers picked up the coveted Best Album and Best Group awards for the third time at the ceremony at London's O2 Arena last night (19.02.14), but think their trophies don't show how good they are as musicians.
Frontman Alex Turner said: "We're really delighted to be here tonight and it was wonderful to perform and have our name on fire, it's something I've been really looking forward to.
"But as wonderful as it is to be acknowledged for something you've created, I don't necessarily think the talent or how good a group of musicians is, is directly shown by the size of their trophy cabinet, but that's not meant to be like a downer on it.
"It's a pleasure to be mentioned alongside great people, but for us, any victory comes closer to the conception of the song or the record in the first place."
The band - also made up of Jamie Cook, Nick O'Malley and Matt Helders - won Best Album for their record 'AM', which conquered the charts last year, and were up against One Direction in the Best Group category.
Alex, 28, said it has been a "big year" for the group and they are now looking forward to the summer, as they prepare to headline Reading and Leeds Festivals and play two special outdoor shows at Finsbury Park in London.
He added: "We can't wait for the summer, it's going to be great."

Nile Rodgers is working on a new Chic album.
The legendary music producer attended the BRIT awards in London last night (19.02.14) and revealed that he's recently found a collection of lost material that the disco group recorded nearly 30 years ago.
He told Digital Spy: "I'm doing a new Chic album now. When I was working on my solo album and David Bowie's solo album back in 1883, I was cutting demos with my old band.
"I like to affectionately call it the 'Lost Chic Tapes' because they just disappeared until recently. I've already written hooks to five of the songs. They're so amazing."
The 61-year-old 'Le Freak' hitmaker was sat with his fellow music producer Pharrell Williams at the ceremony at the O2 Arena and they both took to the stage to perform a surprise medley of Pharrell's hit singles 'Happy' and 'Get Lucky'.
Rodgers - who also accepted the International Group Award on behalf of Pharrell's 'Get Lucky' collaborators Daft Punk - will soon be celebrating his own success when he reaches the landmark of 20 years without drinking alcohol or taking drugs.
He told the Metro newspaper: "As of Madonna's next birthday if I'm lucky, it will be 20 years since I've had a drink or drug in my body, which is the most remarkable, incredible thing.
"I remember reading an article by Keith Richards saying he could live without drugs but he couldn't live without music and I feel exactly the same way."