{blackbabes} Double vision

Rihanna probably won't know where to look when she performs during halftime at the NBA All-Star game in Los Angeles on Feb. 20. The pop diva will sing before an audience that's expected to include two of her ex-flames, LA Dodgers star Matt Kemp and artist-actor Drake. But Chris Brown,who was rumored to be coming, won't be, sources tell us. Rihanna and Drake are also said to be performing together at Sunday's Grammys.