Justin Bieber's gonna have a tough time getting back with Selena Gomez -- 'cause we've learned she's gone to Defcon 1 when it comes to cutting JB out of her life! Is she just playing head games? Plus, Robert De Niro chews out Jay-Z for failing to return his phone call -- which, naturally, begs the question ... who's the real king of NYC? Also, Michael Lohan joins us to talk about his televised paternity test. Yep, LiLo's got another new sibling.