Rupert Grint was "surprised" to learn he can sing.
The 25-year-old actor shows off his musical talents in 'Postman Pat: The Movie' - in which he plays the titular character's talent show rival - and thought it would be "a laugh" to record his vocals, but didn't realise he could actually carry a tune well until he heard the finished track.
He explained to Dev on Radio 1: "I was surprised, I thought it would be a laugh, I didn't take it too seriously but it came out alright, I was quite surprised when I heard it."
However, Rupert - who shot to fame playing Ron Weasley in the 'Harry Potter' movie series - insists he has no intention of embarking on a music career.
Asked if he'll release an album, he said: "I doubt it. It's hard, I don't know how people do it."
Rupert was delighted to be a part of the 'Postman Pat' movie because he was such a fan of the original TV series when he was young.
He said: "It's a very different kind of Pat to what I knew, he enters an 'X Factor'-style show and tries to pursue a career in music, and I play his rival.
"It's great, I'm proud to be a part of it because Postman Pat was one of my heroes when I was a kid."

John Mayer has a crush on Lea Michele.
The 36-year-old rocker, who split from Katy Perry three months ago, has reportedly been texting the 'Glee' star nonstop and wants to go on a date with her.
A source told America's Star magazine: "John's had a crush on Lea for a while. He constantly tells her how beautiful she is."
But while Lea, 27, is very flattered by the attention, she isn't interested in dating anyone just yet following her boyfriend Cory Monteith's tragic death from a heroin overdose last July.
The insider said: "She just wants someone to have fun with. She isn't about to give her heart away to someone like him."
Lea recently opened up about her secret romance with 'Glee' co-star Matthew Morrison before they started working together on the hit show in 2009.
She wrote in her new autobiography, Brunette Ambition: "When we shot the pilot [for 'Glee'], I met Cory Monteith, Kevin McHale, Amber Riley, and Chris Colfer for the first time. I had worked on Broadway with Jenna Ushkowitz and Matthew Morrison before. Matt had been a friend of mine for years, and in fact we'd actually dated back in the day for a Broadway beat."

Ed Sheeran has bought a police station to convert it into a youth centre.
The 'Sing' hitmaker has spent more than £1 million as he looks to give back to his home town of Framlingham, Suffolk after crediting the local community with getting him started in music.
According to The Sun on Sunday newspaper, he said: "I'm really excited about the project.
"I had a youth club from when I was 12 when I grew up which did a battle of the bands every week and that's where I and other bands started playing."
When the centre closed its doors, the 23-year-old star moved to London - but he has his heart set on returning when he retires and hopes he can help lay the foundation for a new club and community for the town's youngsters.
He added: "The land the club was on was sold ... and I just went off to London and did shows instead.
"Now there are no youth clubs and noting to do so it's a bad situation.
"The plan when I get older is to end up running that - so I have pretty much planned my retirement."

Tinie Tempah says Brad Pitt and Angelina Jolie are "humble people".
The '5 Minutes' rapper met the famous couple at the BAFTAs and described them as "very beautiful", insisting they made me realise it is possible to be a star "without become a real a-hole".
Speaking to the Mail on Sunday newspaper's Event magazine, he said: "I met Brad Pitt and Angelina Jolie at the BAFTAs.
"They're both very beautiful people, in every sense - the aesthetics are amazing - but I always looked for humility in these kinda stars and they really are humble people.
"They offer you hope that you can reach the heights of stardom without becoming a real a-hole."
However, Tinie was less than impressed with Gary Barlow, insisting despite his talent "as a songwriter" he has lost respect for the Take That star after it emerged he'd been caught up in a tax avoidance scheme.
He insisted: "That tax thing is a bit annoying. Actually, it makes me angry because I pay my taxes.
"Apparently there are people fighting Barlow's corner saying, 'Let him keep the money'.
"Like, really? I respect him as a songwriter but not as a taxpayer."

'Coronation Street' swept the board in nine categories at the British Soap Awards last night (24.05.14).
The Manchester-based show was helped to victory by David Neilson and Julie Hesmondhalgh, who collected six prizes between them for the moving storyline which saw Hayley Cropper die from pancreatic cancer.
They won Best Actor, Best Actress, Best Dramatic Performance (Neilson), Best On-Screen Partnership, Best Storyline for Hayley's cancer and Best Single Episode for Hayley's death, and Julie spoke of their "once in a lifetime" professional pairing.
She said: "It's like a marriage. We went out for a pint in Manchester the other week, it was lovely.
"I told him all the gossip, even though I'm not in it any more I know all the gossip and he doesn't. That kind of working relationship comes once in a lifetime."
'Corrie' also picked up prizes for Best Comedy Performance (Simon Gregson) and Outstanding Achievement (Helen Worth), while departing star Michelle Keegan was named Sexiest Female for the sixth time.
Elsewhere, 'Hollyoaks' was crowned the Best British Soap but was blown away by its rival's huge collection of trophies.

British Soap Awards 2014 Full List of Winners:

Sexiest Male
Danny Mac - 'Hollyoaks'

Sexiest Female
Michelle Keegan - 'Coronation Street'

Villain of the Year
Anna Passey - 'Hollyoaks'

Best Actor
David Neilson - 'Coronation Street'

Best Actress
Julie Hesmondhalgh - 'Coronation Street'

Best Comedy Performance
Simon Gregson - 'Coronation Street'

Best Young Performance
Ellis Hollins - 'Hollyoaks'

Spectacular Scene of the Year
The Woolpack Flood & Siege - 'Emmerdale'

Best On-screen Partnership
David Neilson & Julie Hesmondhalgh - 'Coronation Street'

Best Newcomer
Maddy Hill - 'EastEnders'

Best Dramatic Performance
David Neilson - 'Coronation Street'

Best Storyline
Hayley's cancer - 'Coronation Street'

Best Single Episode
Hayley's death - 'Coronation Street'

Outstanding Achievement Award
Helen Worth - 'Coronation Street'

Outstanding Achievement (off-screen)
Carolyn Weinstein (Company Manager) - 'EastEnders'

Best British Soap
'Hollyoaks'

Adele has agreed to become a judge on 'The X Factor'.
The 'Skyfall' singer is reportedly set to join the panel of the TV talent show - although she won't commit until she has finished working on her new album, so fans shouldn't expect to see her until at least 2016.
An insider told the Daily Star Sunday newspaper: "Adele is a huge fan of the show and has agreed to be a judge. Simon wanted her to join him and [Cheryl Cole] on this year's panel.
"Although she has turned him down due to album commitments she has promised to sign up as a judge in the next few years.
"She really wants to join the show, even if it is just for a one-off year. Although no contract has been signed, Adele has made it clear to Simon she's up for it when the time is right."
The Grammy Award-winning star is expecting to release her third record later this year, with plans to tour in 2015 and join 'The X Factor' once she's available.
The source said: "Adele hopes to release her third album. She will then take out 2015 to tour but said an 'X Factor' spot for 2016 is possible, with 2017 more likely."

Travis Barker still shares a home with his ex-wife.
The Blink-182 rocker split from Shanna Moakler in 2008 after four years of marriage, but they are now on good terms and try to make things easy for their children, Landon, 10, and Alabama, eight.
The former Playboy model - who has joined the cast of VH1's 'Hollywood Exes' - said: "It took a long time, but we're in a good place. He's an incredible dad and we have a pretty cool custody agreement - we share a home and alternate staying there so the kids don't have to leave."
Shanna is now in a relationship with a "normal guy," and admits she disliked being married to a famous person.
She told In Touch Weekly magazine: "Being married to someone on that level is challenging. People think they know what's going on behind closed doors and have strong opinions about your relationship. It can be horrible."
Shanna recently joined reality show 'Hollywood Exes', stemming from her marriage to Travis, as well as her previous relationships with boxer Oscar de la Hoya, rocker Billy Idol and actor Dennis Quaid.

Katie Price's cheating husband had unprotected sex 25 times with Jane Pountney.
Kieran Hayler has revealed he and his wife's best friend got into a "routine" during their seven-month affair, and he enjoyed the risk of not wearing a condom during their time together.
Talking to The Sun on Sunday newspaper, he said: "I was getting what I wanted and fed Jane what she wanted to hear. From then on, the routine was usually the same.
"I would get into the passenger seat of Jane's car, she would jump on top of me and we would have sex.
"I didn't wear a condom because it added to the risk and my heart rate was always racing."
Kieran has even admitted the pair enjoyed a romp in Katie's stables, and he told Jane he loved her to keep getting what he wanted.
He added: "Kate was out and Jane texted me to say, 'Can we go somewhere'?
"I replied, 'Yes, the stables' ... Jane said she was falling in love with me and wanted to have children.
"I said it too because as long as I told her what she wanted to hear, I was getting what I wanted."
Their long-term affair began while Katie was in hospital giving birth to their first baby Jett Riviera, and Kieran has admitted his wife did absolutely nothing to deserve the betrayal.
Speaking about the first kiss which fueled their romance, he said: "I took a risk and pulled Jane towards me in the kitchen of the villa where we were staying in France while Kate went to do a night feed.
"It was awkward but we kissed and I knew she was the one who could give me what I needed.
"Within weeks we were having a full-blown sexual affair."

Cara Delevingne wore a £300,000 necklace to her sister's wedding.
The supermodel was reportedly "the butt of all jokes" at Poppy's nuptials because of the pricey jewellery, which was given to her as a given at Cannes Film Festival last week.
A source said: "Cara has been the butt of all jokes at the wedding because of the necklace.
"She has absolutely no idea how much the thing was worth and even turned up to the airport wearing it with a regular old tracksuit ... Apparently the sapphire is completely flawless and one of the best in the entire world.
"She has the price of a house hanging around her neck and she didn't even realise."
Cara - who was delighted when the boss of Swiss jewellery de Grisogono agreed to let her keep the necklace - was at the wedding without her on/off girlfriend Michelle Rodriguez following speculation the pair could have broke up.
The insider told The Sun on Sunday newspaper: "They've not properly split, but things really aren't looking good for them.
"Michelle was invited to Morocco but Cara told her not to bother coming along.
"She wanted to enjoy the day and couldn't be having to deal with her own relationship drama."

One Direction are set for a comedy show and world tour in 2015.
The superstar boyband haven't even reached the halfway point of their current trip across the globe, but it is said the 'Story of My Life' hitmakers are already keen to push on with their next big project.
A source told the Daily Star Sunday newspaper: "The boys and the team have agreed that taking an extended break is not needed.
"They have been loving the tour so far and have all got a renewed lease of energy. Discussions about another stadium tour next year are already on-going.
"A new TV show is also being discussed. At this stage the pilot sees them living in Los Angeles by the beach."
Although a full series hasn't been officially commissioned just yet, it is said a host of comedy writers are set to join the team.
The insider added: "Comedy writers will be working on it, so that it really gives all the boys a chance to shine and be a great advert for their new music.
"The show will be peppered with guest cameos, too. The plan is for the boys to see a pilot in the spring. No series has been commissioned yet and it is all very hush-hush."

Angelina Jolie's acting career is to take a "back seat".
The 'Maleficent' actress wants to focus more of her time on writing and directing, as well as on her work with the United Nations (UN), for who she is a special envoy of the UN High Commissioner for Refugees, so only plans to make "a few more" movies.
She said: "Acting is going to take more of a back seat. I've had a wonderful career and I'm very happy to have had all the opportunities to tell stories and work for as long as I have.
"I'm sure there'll be a few more films but I'm happy that I'm able to be selective and have fun with characters like Maleficent.
"But I would like to focus more on writing and directing and above all I would like to focus more on my work with the UN."
While Angelina enjoyed working on 'Maleficent', she found playing the titular character tough because of the transformation it required.
She explained in an interview with Britain's OK! magazine: "It was so much fun but hard at first. As an actress, I do film, not theatre, so I don't naturally have that voice. I had to embrace my silliness.
"I think it's a beautiful story and there's a lot of depth to it and we got a little crazy and had a lot of fun. I hope that resonates and people are entertained by it."

Foo Fighters' drummer Taylor Hawkins hopes his new record touches people "emotionally".
The 42-year-old musician has worked with the band's frontman Dave Grohl, along with My Ruin guitarist Mick Murphy and Chevy Metal bass player Wiley Hodgden on the fresh tracks, as part of a side-project, The Birds Of Satan.
Asked what he hopes people will get out of the new record, he told Metal Hammer magazine: "Just a good time. Hopefully it can touch them emotionally. If I listen to an early [Lynard] Skynryd record or a Van Halen record, it just makes me want to break things. You feel alive and excited. And I would feel so lucky if I heard even one person say that about one of my records. Hopefully it touches somebody. Good, bad, happy or sad, I'll take anything!"
The drummer insists he likes to do an album in between every Foo Fighters record because he likes to write his own songs and sing.
Discussing working with close friend Wiley, he said: "He's never been on a real record so this is a big deal for him. And Mick is a hell of a guitar player and he's become a good friend. It's just going back to the real reason for making music, which is just the joy of music."