Doing the white thing: Pixie Lott shows off impeccable abs in white crop top as she performs at Rays Of Sunshine charity event

PUBLISHED: 19:16, 4 May 2014 | UPDATED: 23:48, 4 May 2014

Pixie Lott looked incredible when she turned up at the Rays Of Sunshine charity event, held at the Royal Albert Hall on Sunday.

The pretty blonde, who was performing at the event, shone as she posed for photographers in a summery white ensemble.

She performed ahead of singer, Olly Murs, wearing a daring white crop top which she teamed with a retro-inspired flared skirt in the same hue.

She's a knock-out: Pixie Lott stole the show in white at the Rays Of Sunshine charity event held at the Royal Albert Hall on Sunday night

Pop princess: The singer thrashed out her hits in her gorgeous summery ensemble

The 23-year-old slipped into a pair of leather and perspex heels which showed off her contrasting bright yellow pedicure.

The singer songwriter became an ambassador of the charity after meeting one of its wish children, Bella last year, according to the Rays Of Sunshine website.

Pixie was so moved by the little girl that she named a necklace from her Rock ‘n Rose jewellery collection after her and accepted the role!

That's Shoebusiness: The 23-year-old topped off the look with a pair of leather and perspex heels - and showed off a bright yellow pedicure

Sexy thing: Pixie brightened up the look with a slick of red lipstick

Lott said: 'I am absolutely honoured to become an ambassador for Rays of Sunshine. Bella’s twinkly, smiley face made my day and I only hope I can help the charity to spread more beautiful smiles.'

Proving her superstar credentials, the singer had changed from the outfit she arrived at the venue in, a pretty pair of white floral capri pants which she teamed with a white top and tasselled loafers.

She was shocked to receive a giant neon pink teddy bear from an excited fan and holding it out while she studied it, Pixie appeared lost for words at the sheer size of the toy.

Working it: Pixie had a spring in her step as she performed on stage in aid of the good cause

Helping a good cause: The singer songwriter became an ambassador of the charity after meeting one of its wish children, Bella last year, according to the Rays Of Sunshine website

Nevertheless, she later posed for it with photographers and had a selfie with the generous fan herself. The kind star carried it inside ahead of her soundcheck before the show.

Pixie is performing a number of her hits alongside in aid of the charity, which supports seriously-ill children.

Pop favourite Olly Murs will headline the night as a fantastic line-up of artists take to the Royal Albert Hall stage in support of the Rays of Sunshine Children's Charity.

Bear hug: Pixie Lott gets gifted a giant pink teddy bear by fans as she attends sound check at the Royal Albert Hall ahead of the concert

Pixie was presented with the gift as she arrived at London's Royal Albert Hall for the Rays of Sunshine concert

Pretty in pink: Pixie Lott is clearly delighted wit her hand-delivered gift

The evening, hosted by Heart radio's Toby Anstis, will also see performances from Professor Green, Union J, Alesha Dixon, Flawless, Elyar Fox and Eliza Doolittle.

The celebrities will all lend their support to the charity which grants wishes for seriously and terminally ill children in the UK.

Olly Murs, who - like Pixie - is an ambassador of the charity, will headline the show.

Pixie is performing a number of her hits alongside in aid of the charity, which supports seriously-ill children

Pixie is a self confessed fashionista and has a love of all things Brigitte Bardot and Sixites.

While the stylish starlet has never felt a pressure to dress a certain way to conform to industry standards, she recently explained the likes of 60s icons Brigitte Bardot and Edie Sedgwick are her style heroines.

Speaking to the Mail's YOU magazine, she said: 'I’ve never felt pressured to dress a certain way. It’s tricky. I would never go to extremes.

Where am I going to put this? Pixie Lott studies her latest gift outside the Royal Albert Hall

'But I’ve definitely done videos that are more raunchy than others just because of what the song is about.

'I love everything about the 60s. I love Brigitte Bardot and Edie Sedgwick as style icons, I love the whole fashion from that era.

Pixie has been dating male model Oliver Cheshire for three years, and while they make their relationship work by staying in contact via Skype when she is working overseas, the star insisted they are 'too young' to think about tying the knot anytime soon.