It's a grey day for Amanda Holden as she shuns the glamour for a tracksuit

As a judge of Britain's Got Talent, Amanda Holden is well-known for her glamorous outfits and immaculate make-up.

So after putting in another chic appearance on This Morning today to plug weekend return of the show, it was quite a surprise to see the 39-year-old in a tracksuit as she left the ITV studios.

But the 39-year-old had appropriately decided to dress down into a comfy velour number and knitted Ugg boots for the journey home - on the back of a motorbike.

Amanda Holden is pictured leaving This Morning on a taxi bike to Kings Cross Train Station
Amanda Holden is pictured leaving This Morning on a taxi bike to Kings Cross Train Station

Dressed down: Amanda Holden changes into a grey tracksuit and Ugg boots as she prepares to get on a motorbike taxi at the This Morning studios

She made the trip on two wheels from London's South Bank to King's Cross train station.

During her appearance on This Morning, Holden played down expectations of discovering another Susan Boyle on Britain's Got Talent.

She said: 'It was an iconic television history moment that went worldwide and I don’t think that it’ll ever happen again worldwide, I just don’t think it’ll happen, I just don’t. And that’s because the public made it happen.

'I meant this time last year when I was here on this show, I think I might’ve mentioned Susan and probably said we’ve got a great singer - we all thought she was great - but none of us predicted what happened.

'So it’s up to them at home to make something happen this year, not us.'

Amanda Holden

Saddle up: Holden puts her helmet and gloves on in preparation for her ride across town

Amanda Holden

And we're off: The Britain's Got Talent judge holds tight as her biker drives off

Holden admitted she found this year's series a lot of fun because during Simon Cowell's absence through illness, she got to put acts through that he would never have chosen.

She said: 'It’s a lot more fun this year. There’s a lot more variety acts and it’s a completely different show to last year.

'We had a lot of fun and Simon was away for some of it as he was poorly, so while he was away me and Piers played! It was marvellous.

'We did take advantage and we were a little bit more kinder, a little bit more generous, and we put acts through that he probably wouldn’t like to see on the show at all to annoy him.'

amanda holden on this morning

Not suitable for biking: Holden wisely changed out of the smart grey dress she had worn on the show

Cowell was forced to miss several auditions in February after falling down with the flu and asked X Factor judge Louis Walsh to stand in for him.

Holden enthused: 'Louis was completely different and he was absolutely obsessed with the buzzers. He just kept pressing it - it was like some kind of nervous twitch.

'But then he’d be watching jugglers saying "you wouldn’t sell records, you wouldn’t sell records" and we had to remind him that that’s the wrong show. He kept using all his X Factor lines on the show that did not work.'

The new series of Britain's Got Talent starts tomorrow on ITV1 at 8pm