Hard to believe, but today (June 17, 2014) is the 20th anniversary of the O.J. Simpson Bronco chase.

Even harder to believe, some old footage of O.J. showing him grooving and laughing as he listens to a rap song about the murder of his wife.

O.J. Simpson's old manager Norman Pardo just released a new documentary called "O.J. Simpson: In His Own Words", and it has a lot of footage of O.J. that has never been seen before.