Kourtney Kardashian accused of cheating on Scott Disick and squirting out a kid that isn't his -- does the model she allegedly hooked up really have proof ... or is this one of the craziest publicity ploys ever? And, Usher hugs it out with Tameka Raymond after he beats her in court -- was it just a nice guy move ... or a perfectly executed PR move? Plus, Nick Jonas joins us to explain how his life has changed after posting the ripped, shirtless photo of himself ... and it looks like there will be more to come!