Sweet 19 Turns Sour: Bieber Tweets "Worst Birthday"

Canadian pop sensation Justin Bieber turned 19 on March 1 and he was in London to reign in his last year as a teenager. He had big plans, too: Bieber headed out to London nightclub Cirque Du Soir with his crew, which included Will Smith's 14-year-old son Jaden Smith, as well as rumored girlfriend Ella-Paige Roberts Clarke.

Plans were foiled though when a confrontation erupted between his guests and security at the club. His party had to leave the club a few minutes later, and Bieber tweeted "worst birthday." According to a source who spoke to Us Weekly, the group was turned away for including members under the legal age of 18: "they could have stayed if Jaden left, but Justin wanted to be loyal to his good friend." Cheers to Bieber who chose friendship over a romping good birthday time.