The transformation's complete! Amelia Lily ditches the pink and goes back to blonde ahead of X Factor semi-finals

By Sarah Bull

Last updated at 1:20 AM on 1st December 2011

She was made over with hot pink hair when she began her journey on The X Factor earlier this year.

But now Amelia Lily has ditched her pink locks for a more grown-up blonde 'do ahead of the semi-finals of the talent show this weekend.

The 17-year-old singer debuted her lighter locks as she performed at an X Factor secret gig alongside her fellow semi-finalists.

Back to blonde: Amelia Lily has ditched the pink hair and gone back to blonde, as she revealed at the X Factor secret gig in London

Amelia, who was given a second chance and brought back into the competition after Frankie Cocozza was sent home, teamed the blonde hair with a pair of animal-print leggings, glittery boots and a sheer blouse.

Meanwhile, the show finalists have spoken of their delight that their charity single is looking set to get to number one.

The four remaining acts - Amelia, Misha B, Little Mix, and Marcus Collins - collaborated on a cover version of Wishing On A Star to raise money for Together for Short Lives, which provides support for children unlikely to reach adulthood, as well as their families.

Pretty in pink: Amelia was made over with the bright pink hair at the start of the competition

Fading out: In recent weeks, Amelia has been lightening up her pink locks

The single also features the other finalists on the ITV1 show along with previous contestants JLS and One Direction.

The release has been outselling its nearest competitor Olly Murs' Dance With Me Tonight this week by more than two copies to one, according to the Official Charts Company.

Speaking ahead of their performance, Little Mix's Jesy said: 'It would be amazing if we got to number one.

Original: When Amelia auditioned for the show, she had peroxide blonde hair

'It would be an overwhelming feeling knowing that we're helping so many kids.'

Bandmate Perrie added: 'It's such a good cause. When you meet these children you realise how privileged you are to have your health.'

Speaking of being the girl band to have reached the furthest stage in any series of the X Factor, she added: 'We are overwhelmed. We can't believe we've made it so far.

'We were favourite to go in the beginning and now we're here in the semi-final. It's just unbelievable.'