Mostly, though, models are encouraged to smile, ham it up and show off the extra time at the gym that most admit to in the weeks beforehand. "It's highly televised, and you take that into consideration," said model Joan Smalls ahead of the show. "This is kind of not the same as other runways. You have to prepare your body: No. 1 is the wings are heavy, and No. 2 is you have to be comfortable with your body because the camera will pick up on it if you're not comfortable and confident."
There's an emphasis on glitz, skin and dramatic production here, not wearable undergarment trends for typical Victoria's Secret shoppers. It was divided into six sections: Circus, complete with acrobats, contortionists and a sword eater; Dangerous Liaisons; Pink Is Us; Silver Screen Angels; Angels in Bloom; and Calendar Girls, which allowed Bruno Mars to serenade a model for each month of the year.
For his first song, "Beauty and the Beat," Bieber, wearing low-slung white pants and a white leather studded vest, sat alone with his guitarist in the mellowest part of the show. For "As Long As You Love Me," however, he brought in backup dancers and interacted with the models while moving around a giant makeshift pinball machine.
"It's like a dream come true," said Bieber on the pink carpet before the show. "I would rather be here than anywhere in the world."
AP reporter John Carucci contributed to this report.