Abhishek Bachchan is celebrating his 50th birthday today. While he has attended quite a lot of Filmfare awards since his debut, some of his onstage moments are still popular among his fans. On his special day, we look back at some of his best Filmfare moments. During the 70th Filmfare Awards last year, the actor surprised the audience and even his actor-mother Jaya Bachchan with his tribute to Amitabh Bachchan. The I Want To Talk actor performed a vibrant medley of Big B's most iconic songs.