Victoria's Secret Fashion Show: Watch Justin Bieber's performance

Justin Bieber was all about the music at the Victoria's Secret Fashion Show 2012, which aired on CBS last night. The 18-year-old pop star performed an acoustic version of "As Long As You Love Me" and made the crowd -- and the Victoria's Secret Angels -- go wild. He later performed "Beauty and the Beat" as the models strutted their stuff on the red carpet and sang along.

It seems as though the Angels and Bieber hit it off pretty well -- and no, we aren't talking about his rumored fling with Barbara Palvin. Victoria's Secret recently uploaded a video of the models lip syncing Bieber's "Beauty and the Beat" as part of the promotion for the Fashion Show.

In addition to Bieber, both Rihanna and Bruno Mars performed during the Victoria's Secret Fashion Show 2012. Rihanna appropriately sang "Diamonds," while Bruno Mars performed "Locked Out of Heaven" and "Young Girls."