Diana Vickers in her knickers for fashion show

Chart star Diana Vickers has been given a new brief - posing in her undies.

The singer is pictured in fancy underwear after being unveiled as the face of a high street fashion show to take place during London Fashion Week.

The 19-year-old Once singer is fronting the campaign to promote the Look Show, which is the only event open to consumers during the week.

She will also perform at the show, hosted by Look magazine, which takes place at London's Saatchi Gallery on Friday.

Vickers, who posed in vintage-style lingerie and stockings, will be joined on the bill by Gabriella Cilmi, VV Brown and US band The Like.

The Look Show will showcase the autumn/winter collections of 11 high street retailers.