Leo’s got bars! Leonardo DiCaprio performed some impromptu karaoke as he rapped the song “Dwyck” by Gang Starr at his 49th birthday party on Sunday, November 12. Leo was seen holding onto the mic as some of his friends gathered around him as he rapped in the video from TMZ. The actor nailed the verse, and it looked like he had a blast ushering in the last year of his 40s.