David Gelman: 'I bet Diddy wants to testify because he has a big ego'

Sean 'Diddy' Combs is facing the third week of his sex-trafficking and racketeering trial in New York City. The music mogul, 55, has sat by his team of star lawyers as prosecutors accuse him of using his wealth and fame to coerce and threaten women and employees into serving his every need and sexual fantasy.