Early favourite before the show's even started: X Factor frontrunner Janet Devlin is already secret YouTube sensation

By Jody Thompson

Last updated at 10:21 AM on 19th August 2011

The revamped X Factor hits our screens tomorrow night - and a shy 16-year-old who is set to wow the judges is already being tipped for success.

Janet Devlin takes the stage before new judges Tulisa Contostavlos, Kelly Rowland and Gary Barlow, as well as old hand Louis Walsh, to perform a version of Ellie Goulding's take on Elton John's Your Song - and gets a standing ovation.

Dressed in a fluffy long cardigan with letters of the alphabet knitted into it, she appears to be so nervous she has to be coaxed onstage.

Scroll down to watch Janet sing When We Collide...

Early frontrunner: Shy Janet Devlin will get a standing ovation when the new series of the X Factor starts tomorrow night

However, afterwards - and with the judges on their feet - former Destiny's Child star Kelly proclaims: 'You are such a star.'

Louis also reckons: 'I don't think you have any idea how good you are,' with Gary adding: 'It was such a wonderful audition.'

Janet has already won plaudits and thousands of hits for YouTube postings showing the bashful blonde performing Matt Cardle’s triumphant track from last year, When We Collide by Biffy Clyro, as well as a version of Adele's Someone Like You.

All that glisters: Goldie fails to impress despite throwing up backstage with nerves and giving Gary a mini lapdance

Off key: The Hong Kong born wannabe even gives Louis a kiss in a bid to impress the judges

Bonkers: Goldie is described as half Tina Turner, half lapdancer

Meanwhile, one X Factor wannabe has a crack at fame this year by baring his behind for the judges.

Cheeky 18-year-old Frankie from Brighton came back from a working holiday in Malia, Crete, to compete in the ITV1 show.

The teenager told the panel he had the names of seven different girls he met on holiday tattooed on his backside and then bared all to prove it.

At least one judge, Kelly, was impressed.

She said: 'He came on, he showed his a**. You've got to love that.'

Not impressive: Tulisa gets more than she bargained before when she stops George Gerasimou's audition

His performance of Valerie impresses the crowd as well making him another early favourite.

The judges also had to cope with another act that was literally sick with nerves.

But Hong Kong-born Goldie recovered to put on a performance that was half Tina Turner and half lap dancer - and certainly left an impression on Gary Barlow.

He said: 'It's been a long time since I had a stranger's leg around my neck. Listen, I loved it, but you're wasting your time with Louis.'

Abuse: George storms off stage and goes around the back of the judging panel shouting insults at Tulisa

Out of order: Security rush in and the youth is warned by host Dermot O'Leary to watch his mouth

However, there is trouble on tomorrow's show - as Mail Online reported earlier this year - when 19-year-old George Gerasimou from London, confronts Tulisa.

The new X Factor judge, 22, had stopped wannabe George Gerasimou's audition at London's 02 Arena when he suddenly made a lunge for her and starting screaming abuse and calling her a 'scumbag'.

Security staff immediately rushed to the N-Dubz star's defence and intervened to gasps from the 10,000 audience.

He goes up behind the judges desk and rants: 'This is who's replace Cheryl Cole, some scumbag, what a stupid b****.'

Tulisa has to be held back by Louis as host Dermot O'Leary warns: 'Watch your mouth.'