Memorable Moments From Billboard Music Awards 2011 (Video)

So, in case you missed it, Justin Bieber kissed Selena Gomez in public again, Rihanna kicked off the spectacular show with a performance of S&M joined on stage by Britney Spears (Brit also performed with Nicki Minaj), while Beyonce brought the house down with a great performance of  “Run The World (Girls)”.