Justin Bieber's performance at the Michael Jackson tribute. The teen star took on MJ's famous song, Rockin' Robin because apparently JB used to sing this song while looking in the mirror when he was really young. So he sang a kinda impromptu acoustic few lines and the audience was definitely feeling it because they just started along to the beat. The quick stage show came after Justin delivered a few words about Michael, saying that Michael meant a lot to him and he looked up to him and asking the crowd to give MJ a round of applause. He even admitted to being a little nervous and said that he wants to be as good as Michael was in his own career. We also need to fill you in that Michael's daughter, Paris, introduced Justin by explaining that her dad would have loved to have been a mentor to a star like JB, adding that she's a fan just like a lot of the audience. Once again, this was a part of the Michael Jackson Tribute here in Hollywood and we've got a link to it below in the info section. .