POTW: Lady Gaga, Perez Hilton, Justin Bieber, Katy Perry
Gossip blogger Perez Hilton felt up a Lady Gaga wax figure, Justin Bieber serenaded a psyched fan, Katy Perry gave Frosty the Snowman a run for his money, Sir Paul McCartney and Oprah Winfrey mean-mugged, Charice hopped her way on stage, Fabolous and Trey Songz put furniture together, Mariah Carey dressed as Mrs. Santa's uber-sexy alter-ego and Juanes played nice with Billboard's New York staff. It all happened this week and we've got the pics to prove it.
News of the Week: Billboard's 5 Most Popular Stories
1. Best of 2010