Richie takes charge of Mischa's new pup. Plus: Leo, Beyoncé & Jay-Z, Julia Roberts and more

B-BALL BLUES

All's not fair in love and basketball: Though Jay-Z gets a night with girlfriend Beyoncé, he also had to watch his team, the New Jersey Nets, lose to the New York Knicks, 90-83, in a home game Wednesday. (The rapper is a part-owner of the team.)