This might be the funniest thing that Jimmy Fallon has ever done.  I'm not a fan of Fallon, but his Justin Bieber impression is the best thing I've seen in a while.

It's amazing how much Jimmy looks, sounds and dances like Bieber.

In fact, has anyone ever seen these two in the same room?  Somebody call the Bloodhound Gang, because we might have a mystery on our hands!

On a serious note, the Justin Bieber paternity suit has brought up some more serious legal complications.  Police are considering investigating a statutory rape charge since Bieber was 16 years old at the time of the alleged sex.  Check out the entire story here.

Now watch Jimmy Bieber claim his innocence through song.