If you've caught Chingy's video for "One Call Away," you already know that the Cosby kids are all grown up.

Keshia Knight Pulliam — formerly the pigtailed Rudy of Bill Cosby’s mid-'80s TV family — leaves her child-star days behind in the clip, which finds her sporting only a bra at one point (see ).

She's not the only one who graduated from Dr. Heathcliff Huxtable's home to a spot on MTV. Catch up with the Cosby kids — including unlikely Huxtable houseguest Alicia Keys — in our . You can also find out once and for all what Rudy’s old pal Bud thinks of her steamy video work.