Behind-The-Scenes of the Victoria's Secret Fashion Show

It's the sexiest night of the year as the most beautiful girls in the world don the hottest fashions on the planet for the Victoria’s Secret Fashion Show.

Rihanna serenaded model Doutzen Kroes, who wowed the crowd in black feather wings.

Adriana Lima pranced down the runway just six weeks after giving birth to her second child. She's not the only mother hitting the catwalk.

Alessandra Ambrosio, who wears the $2.5 million fantasy bra, gave birth just six months ago. Before the show, she told us how whipped her body into shape.

Ambrosio said "Eating lots of greens, lots of protein."

The strict diet certainly paid off.   

Monica Mitro, the executive producer of the Victoria’s Secret Fashion Show, spoke to us about Ambrosio’s fantasy bra.

Mitro said, “It is more than just a fashion show, it is truly a show with performers, musicians, it really is an extravaganza."

The show airs Tuesday night at 10p.m. on CBS.