'I Can't Sing' abruptly ended mid-show due to technical issues last night (17.03.14).
'The X Factor' musical, held at the London Palladium theatre, was plagued by a "major electrical fault" and the entire second act was abandoned, reports Digital Spy.
The audience - including 'Britain's Got Talent' judge Amanda Holden - faced a 45-minute delay after the interval before director Sean Foley came onstage to inform the audience the show wouldn't go on.
Producers offered a refund for any tickets purchased, or alternatively, an exchange to see the musical on a different night.
Last month, the opening night of 'I Can't Sing' - which was written by comedian Harry Hill and is produced by 'X Factor' creator Simon Cowell - was delayed twice due to technical problems.
The musical pokes fun at the ITV singing competition and features caricatures of the show's famous faces, including Nigel Harman portraying judge Simon Cowell.
Louis Walsh, returning judge Cheryl Cole and host Dermot O'Leary are also spoofed in the theatre show.
Producers recently cut a line mocking theatre mogul Sir Andrew Lloyd Webber's recent musical, 'Stephen Webber', so as not to offend him as he owns the London Palladium.
A source said: "They didn't want to run the risk of upsetting him. After all, he does own the Palladium. Lloyd Webber is blissfully unaware."

Rod Stewart and Penny Lancaster have praised Arthur Darvill.
The superstar couple were blown away by the former 'Doctor Who' star, who took over the lead role of Guy in the 'Once' musical at London's Phoenix Theatre last night (17.03.14).
Penny described the show as "incredible" and hailed the show's cast, which includes Arthur, 31, and leading lady Zrinka Cvitešić.
The 43-year-old model exclusively told BANG Showbiz: "The leading lady is just so believable you forget she's acting up there. And the talent - being able to act and be musicians at the same time, that's a real talent."
Rod, 69, and his wife - who have two sons, Alastair, eight, and three-year-old Aidan - were eager to support the 'Once' gala performance because it was held in association with non-profit organisation Oxfam, which is close to Penny's heart.
She added: "We spend most of the time in Los Angeles, we're only here for two weeks, and we heard 'Once' was in theatres - we'd seen the movie - and then we heard tonight was connected to Oxfam. We just recently donated some of our children's clothes to Oxfam, so it's very special."
Other stars who attended the 'Once' Oxfam gala performance included Jennifer Saunders, Eliza Doolittle and Michael Ball.
'Once' is booking now at the Phoenix Theatre in London. For tickets visit www.oncemusical.co.uk.

Steve Carell is set to star in and produce 'The Priority List'. The drama, which is based on the memoir of David Menasche, tells the story of a Miami high school teacher who is diagnosed with cancer and told he has just months to live. Menasche was d...

Pope Francis has cancelled a meeting with the creative team behind 'Noah'.
Paramount vice chair Rob Moore, director Darren Aronofsky and Hollywood star Russell Crowe were hoping to to schedule a photo-op with leader of the Catholic Church.
The meeting was set for 8.30 am on Wednesday (19.03.14) so the pope could lend a blessing to the biblical epic, which is based on the story of Noah's Ark from The Book Of Genesis, prior to the US release at the end of March.
Sources told Variety.com, the Vatican cancelled the meeting "over concerns word would leak, causing a spectacle as Crowe and Aronofsky landed in Rome."
Crowe previously reached out to Francis on Twitter, urging him to watch the movie which contains a "powerful , fascinating" message.
He wrote: "Dear Holy Father @Pontifex @Pontifex_it @DarrenAronofsky #Noah film. Screening?The message of the film is powerful , fascinating , resonant (sic)"
'Noah' has an all-star cast including Jennifer Connelly, Ray Winstone, Emma Watson, Logan Lerman and Anthony Hopkins.

Kian Egan thinks One Direction could split up because they don't appear to have a close bond anymore.
The former Westlife star thinks the band would be stupid to break up after band member Liam Payne admitted the group hadn't seen each other for three months before the BRIT Awards in February.
Kian told The Sun Newspaper: "One Direction would be fools to throw it away, absolute fools - and I get the feeling they will. I watch them and they don't seem to have this bond as tight as we had in Westlife - especially as they've only been together three or four years."
Westlife - who formed in 1998 - had their fair share of boy band troubles over the years, following the departure of singer Brian McFadden in 2004, and a short hiatus four years later.
Despite their split in 2012, Kian, 33, insists the mutual respect between him and remaining band members - Nicky Byrne, Mark Feehily and Shane Filan - helped them to continue as a four-piece and enjoy their final years together.
He added: "As we always said in Westlife, 'There's not one person in a band that's bigger than the band'.
"Respect each other and understand that it's a unit, it's not a bunch of individuals wanting to do what they want to do."
He said Liam, along with bandmates Harry Styles, Louis Tomlinson, Zayn Malik and Niall Horan, should "try to pull together and look out for each other and protect each other and stand by each other's side."
The 'Midnight Memories' hitmakers went on a break in December but headed to work again this week as they prepare for their 'Where We Are' stadium tour, which will kick off on April 25 in Bogota, Colombia.

Robbie Williams is planning to collaborate with his dad.
The 40-year-old singer, who invited his father Pete Conway to perform with him at London's Palladium in November, is set to work with him again.
According to The Sun newspaper, Pete said: "I loved doing the Palladium with him. It was great. I really enjoyed it. We're going to do something together soon. It will be announced shortly - I just don't know all the details yet."
Stars including Liam Payne from One Direction, singer Adele and comedian Alan Carr watched the pair duet at the show, which also saw the former Take That star perform songs from his album 'Swings Both Ways' and sing with Lily Allen.
Robbie and his dad sung 'Do Nothing Til You Hear It From Me', and Pete hugged his son before he left the stage to rapturous applause.
Meanwhile, Robbie "doesn't want to upset" bandmate Gary Barlow by saying no to a Take That reunion.
The 'Let Me Entertain You' hitmaker has reportedly suggested that they take things slow by working on material together - along with fellow bandmates Mark Owen, Jason Orange and Howard Donald - for now, and then discussing a world tour at a later date.
The source said: "He's suggested recording together, seeing how that goes then embarking on a world tour in 2015."

Britain's Prince Harry's girlfriend has moved into a flat near him.
Cressida Bonas has found herself a swanky apartment in Shepherd's Bush, near Kensington, in London so she can be closer to her beau, who resides at Kensington Palace.
A source told HELLO! magazine: "Cress loves the area and likes to go to the Havelock Tavern, which is the actress Carey Mulligan's local.
"She and her friend Daisy have been hunting for somewhere nice and cheap but also close to Kensington Palace. Kensington is far too expensive, so she went for the closest area that was affordable.
"It's just two stops [on the tube] from Notting Hill Gate, which is the station she uses when she goes to see Harry."
Meanwhile, the 30-year-old royal has been smitten with Cressida, 25, since they began dating almost two years ago, but a friend of the socialite claims she won't be moving in with Harry any time soon.
The source said: "[Cressida] has no intention of living with Harry just yet, despite what people have been saying."
However, it seems the pair are keen to step their relationship up to the next level after rumours began to swirl recently, which suggested Harry was gearing up to pop the question to his lover.
A source said previously: "First he needs to go through certain royal protocols, such as asking his grandmother's permission."

Sharon Osbourne wants to stay on 'The X Factor' judging panel.
The 61-year-old star - who won the show last year with her act Sam Bailey - was adamant she would only do one series of the programme, but she's now keen to continue as a panellist alongside Louis Walsh and returning judge Simon Cowell.
A source told The Sun newspaper: "Sharon had such a good time on the last series and would find it hard to resist one last hurrah with Simon. She's thinking it would be fun to do it one more time.
"Louis wants her back and Simon thinks she makes brilliant TV and she's coming around to the idea."
However, Simon, 54, is still torn between keeping his old pals Louis and Sharon onboard, and bringing in some new faces to join him and returning judge Cheryl Cole on the panel.
The source explained: "Simon is torn between the glory of the good old days, and the risk of bringing in new people.
"Now he has Cheryl back, he could revamp with two completely shock additions and the option to do that is tempting to him."
It is believed former 'X Factor' USA judge Demi Lovato and Rita Ora are being eyed up for the two remaining spaces on the panel.
Meanwhile, Louis, 61 - who has appeared on all 10 series of the singing competition - recently claimed he wasn't "worried" about getting the boot from the show.

L'Wren Scott's friends were concerned about her behaviour in the weeks leading up to her death.
The fashion designer - who was found hanged in her New York apartment yesterday (17.03.14) - had reportedly been "acting strangely" and was "ducking phone calls", sparking concern from her pals.
A source told the New York Post newspaper: "They've known that something was going on, and it's been going on for at least a week."
It had also been claimed the 49-year-old Scot - the long-term girlfriend of Rolling Stones singer Sir Mick Jagger - had been involved in a self-harm "incident" recently and had been suffering from depression.
A source is quoted by the MailOnline website as saying: "L'Wren was really quite troubled and there were some issues over Mick and her standing in the family. It seems she suffered from depression."
The insider went on to claim that L'Wren was unhappy Mick wouldn't marry her even though they had been together for 13 years, and she was said to be upset that his former spouse Jerry Hall didn't invite her to the baby shower she threw for the rocker's 42-year-old daughter Jade Jagger - his child with first wife Bianca Jagger - and her 21-year-old daughter Assisi, who are both pregnant.
The former model would regularly join Mick, 70, on the road with The Rolling Stones, but decided to remain in New York during his current run of shows.
The source said: "She just wasn't well enough to go on tour with them."
The Rolling Stones have cancelled their first gig on their Australian tour, which was due to take place in Perth tomorrow (19.03.14), in the wake of L'Wren's tragic passing.

Georgia May Jagger has pulled out of an appearance at Melbourne Fashion Week following the death of L'Wren Scott.
The 22-year-old model - the daughter of the designer's partner Sir Mick Jagger and his ex-wife Jerry Hall - was set to appear on the runway for Camilla Franks this week, but after being informed of yesterday's (17.03.14) tragedy when she landed in Sydney to take a connecting flight to Melbourne, she axed the catwalk show and has now flown out of Australia back to New York to be with her family.
Camilla's spokesman said in a statement: "In light of the recent sad news, Georgia May Jagger will not be participating in Virgin Australia Melbourne Fashion Festival for the Camilla Grand Showcase. We ask that you respect Ms. Jagger and her family's privacy at this very difficult time.
"On behalf of the Festival and the Camilla team we offer our sincere condolences to Ms. Jagger and her family."
Georgia was close to L'Wren - who was found hanged at her New York apartment - and the two women were regularly seen out and about together, including in September, when she joined her rocker father at L'Wren's London Fashion Week show.
The model's decision comes after Mick's band the Rolling Stones cancelled the first date of their Australian tour following the tragedy.
The band were due to perform in Perth (19.03.14) tomorrow, but the show will no longer go ahead, while the future of the other five gigs in the country is also uncertain.

Khloe Kardashian is "not through" her marriage breakdown.
The 29-year-old star filed for divorce from Lamar Odom in December amid allegations he had cheated on her and used drugs, and she admits she finds it hard watching her reality show 'Keeping Up with the Kardashians' at the moment because it is "really hard" to see her personal life laid bare.
Khloe's admission came on 2Day FM's 'Jules, Merrick and Sophie with Mel B' show, when presenter Sophie Monk asked: "I watched all that stuff go down [on the show] and I cried, and you weren't even crying. Are you through that now? Do you feel better and is it all sorted?"
Khloe replied: "It's definitely not anything I'm through. I'm going through it, but I'm not through it.
"It's really hard to watch yourself on TV too. It's definitely different in that the world has to watch too. It's definitely not the easiest thing to do but it's my life now I guess."
Meanwhile, Khloe recently declared her strength following the split by posting a message on Instagram.
She shared a message taken from Joel Osteen's book 'I Declare: 31 Promises To Speak Over Your Life'.
It reads: "'I declare that I will live as a healer. I am sensitive to the needs of those around me. I will lift the fallen, restore the broken, and encourage the discouraged."
It came days after Lamar, 34, suffered an injury causing him to drop out of his Spanish basketball team Laboral Kuxta.

Jason Biggs has changed since the birth of his son.
The 'American Pie' star and his wife Jenny Mollen welcomed their first child, Sid, into the world last month and he claims that having a baby has already made a huge difference to their lives.
He said: "What I'm learning - and what's interesting - is that my wife has changed completely, and I'm sure that I have too.
"She sees it in me, and I see it in her, and we're stronger now because of it."
The 35-year-old actor and the 34-year-old actress and author have been married for nearly six years and Jason wasn't expecting Sid's birth to affect their marriage so quickly, but thinks that there are even more changes to come in the future.
He told People magazine: "That change that happens is so tangible. It happens overnight, and it's the craziest thing.
"Otherwise I don't think I've changed, it's too soon. Ask me again in a couple of years when the kid is milking me, and it's just horrible, and he's running around and it's exhausting."
Jason - who is currently starring in 'Orange Is The New Black' - admitted, however, that having a child hasn't made his made him grow up mentally, as he's still addicted to watching reality TV shows.
He added: "What I've learned from fatherhood is that having a son cannot, did not, change my love for 'The Bachelor'!
"I thought having a son would make me grow up when it came to my TV viewing habits, but I love 'The Bachelor' even more after having a child."