The Blonde Ambition: Justin Bieber

Best outfits

Rihanna, Justin Bieber and Bruno Mars proved their style credentials on Wednesday by performing at the 2012 Victoria's Secret Fashion Show.

The Umbrella hitmaker sang new tracks Diamonds and Fresh Off the Runway, and held hands with model Doutzen Kroes as they hit the stage in New York City.

Lily Aldridge, who also modelled the lingerie company's latest designs, took to her Twitter.com page to declare, "Rihanna is soooo stunning!!!!!! Killed it at VS FashionShow."

Bieber also thrilled the crowd with his mini-set, and later told his Twitter followers, "Great Show!! Thanks for having me victorias secret!"

alessandra ambrosio

Model Alessandra Ambrosio wore this year's bejewelled brassiere, the "floral fantasy bra" worth $2.5 million and covered in precious and semi-precious stones like sapphires, rubies and pink and yellow diamonds.

Other show-stoppers included a caged corset worn by Doutzen Kroes and Aldridge's star-spangled wings that shot sparkles. Vogue-favourite Karlie Kloss also trotted down the runway for the "Circus" and "Calendar Girls" segments.