Balloons, cake, gifts, the occasional red carpet . . . what's not to love about a good party when you're a famous kid? Whether they're accompanying their parents to a film festival or sporting sunnies at a pool party, one thing's for certain, these lil ones know how to party like rock stars! Check out some of the sweetest little famous faces celebrating birthdays, product launches, and more with their friends and family. Then, if you can't get enough celebrity kid fun, cast your vote for the Best-Dressed Celebrity Kid of 2012!