The X Factor: 10.5m watch Tulisa, Kelly and Gary debut

Last updated at 10:00
The new X Factor judge line-up for 2011 - Louis Walsh, Tulisa Contostavlos, Kelly Rowland and Gary BarlowAP

It seems The X Factor still has 'the X factor' - 10.5 million people tuned in to watch the first episode of the new series.

Saturday was the telly debut for new judges Tulisa Contostavlos, Kelly Rowland and Gary Barlow.

ITV said that, at the show's peak, more than half of everyone watching TV had The X Factor on.

But the figure isn't quite as high as last year's first show, which attracted a record 11.1 million viewers.

X Factor hopeful Kitty Brucknell sang Lady Gaga in the first showPA
Kitty Brucknell impressed the judges with a Lady Gaga song

Meanwhile, Gary Barlow has revealed he took advice from Simon Cowell about his new job.

The Take That star admitted: "It's been tough, it really has, I think the hardest thing is learning to really be you on camera."

Simon left the judging panel to launch The X Factor in America, but he is still involved in the UK version behind the scenes.

Tulisa said being a judge was her "dream job".

She recalled: "I think it was about three years ago now, I was sitting at home watching The X Factor at Christmas and I think I turned around to my dad and said, 'I could do that'."