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NBA All-Star Festivities

Rihanna performs during halftime of the 2011 NBA All-Star Game on February 20, 2011 at the Staples Center in Los Angeles, California. (credit: Nathaniel S. Butler/NBAE via Getty Images)

Rihanna Rocks Celeb-Studded NBA All-Star Game

With a celebrity-studded crowd looking on, Rihanna rocked the halftime show at the NBA All-Star game on her 23rd birthday.

CBS2 / KCAL9–02/20/2011