Justin Bieber performing at the Victoria's Secret Fashion Show in NYC on Wednesday, November 7, 2012 (Photo : Twitter: @NomadRJ)

Justin Bieber is the first to take the stage at the Victoria's Secret Fashion Show. Photographer Russell James revealed the first shot from the runway. Bieber is wearing an all white ensemble with a metallic top and matching metallic gloves. "The song just started and the crowd is already going crazy for @justinbieber#vsfashionshow ," James tweeted.

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Rihanna tweets topless and sexy lingerie photos from the Victoria's Secret Fashion Show (PHOTOS)

Bieber and Rihanna are having on heck of a sexy time at the Victoria's Secret Fashion Show. The pop stars, including Bruno Mars, have been prepping for their grand performance at the high-anticipated lingerie show. To get into the spirit of Victoria's Secret signature sexiness, Bieber and Rihanna took some racy photos for their fans.

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Bieber shows that he is no longer a little boy in his most recent shirtless photo. The 18-year-old Canadian hottie showed off his ripped abs and chiseled pecs in a behind-the-scenes photo. "Me and @nickdemoura dance rehearsal get ready #watchout," Bieber tweeted - as if any of his fans were even focused on the caption!

When Selena Gomez is away, the Biebster will play. The heartthrob put his shirt back on and found himself in the arms of two blonde Victoria's Secret Angels, Candice Swanepoel and Lindsay Ellingson - he is truly living every teenage boy's dream. The "Boyfriend" singer hung out backstage with the lingerie-clad models. However, being that Bieber is used to women falling all over him, he remained cool. The superstar was focused on his rehearsal. The star is rumored to be performing his hit single "As Long As You Love Me," but fans will have to wait and see on Dec. 4 when the show airs.

Rihanna was also in a sexy mood. The "Diamonds" singer wore a revealing pink playsuit with a matching trench coat. The super short ensemble featured a low-cut bustier which accentuated Rihanna's famous cleavage. Shot by James, the pop star gave the camera a flirty pout. In her usual funky fashion, Rihanna accessorized with hoop earrings, sunglasses, and bold red lipstick.

Meanwhile, Bruno Mars has not revealed any sexy photos of himself. Perhaps he's feeling self-conscious around all those supermodels. He tweeted, "Shhiiiieeeeetttt U aint gotta be tall to sing to some super models...... or do u? :("

The Victoria's Secret Fashion Show tapes Wednesday night (Nov. 7) and airs on CBS on Tuesday, Dec. 4.