Justin Kissed Selena Billboard Music Awards

Justin Bieber kissed Selena Gomez at Billboard Music Awards

They say that what happens in Vegas stays in Vegas, but on Sunday night, pop culture lovers everywhere were treated to a festival of debauchery and fun at the Billboard Music Awards, which were held in Sin City and broadcast live on ABC.There were two kisses that will certainly have people talking for days. When Britney Spears took the stage with Rihanna for their sexy performance of "S&M," the two shared a kiss. Of course, Spears isn't new to onstage girl-on-girl lip-locks, having shared one with Madonna back in 2003. On Sunday, Spears also took the stage with Nicki Minaj, but no spit was swapped during that other girl-power performance.

Perhaps a more surprising kiss occurred when Justin Bieber kissed girlfriend Selena Gomez after it was announced that he won the award for Top New Artist. Although he didn't mention her name in his speech, according to Aceshowbiz.com, Bieber later praised his lady love in the press room, saying, "She's amazing." Bieber took home five other awards Sunday night.

Beyoncé, honored with the Millennium Award, received taped tributes from Bono, First Lady Michelle Obama, The-Dream, Stevie Wonder, Barbra Streisand and Lady Gaga. As memorable as her performance was thanks to some eye-catching visuals, killer dance moves and that barely there outfit, her shout-out to Jay-Z certainly stood out. "I love me some Jay-Z," she said, after calling him her "best friend."Bey also thanked those who have been in Destiny's Child, including founding members LeToya Luckett and LaTavia Roberson as well as Kelly Rowland and Michelle Williams; Rowland and Williams were in the crowd cheering their girl on.

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Justin Bieber and Selena Gomez at the 2011 Billboard Music Awards

Beyonce’s Stage Outfit at Billboard Music Awards

Beyonce rocked the stage last night at the Billboard Music Awards… and she did so while wearing a very stringy and skin-revealing dress

Beyonce Knowles has bagged this year's Billboard Millennium Award. From First Lady Michelle Obama and Oprah Winfrey to Lady Gaga and Stevie Wonder, the Who's Who of the industry were there to laud the R&B star. 

   

"You are so much more than just a pop star or an icon; you represent the dream," Lady Gaga, who collaborated with the 29-year-old pop sensation in "Telephone" said. "I can remember when she was a kid and she saw Whitney Houston and she said 'One day I'm gonna do that', proud mom Tina Knowles said, holding back her tears. Owner of 16 Grammies, Beyonce grooved to her new single "Run the World (Girls). Other prominent winners included teen icon Justin Beiber, Eminem and Taylor Swift, ContactMusic reported.