http://www.youtube.com/watch?v=eN3_3IYuvIA
When she was only four years old, Alicia Keys made a guest appearance on one of the all-time classic episodes of The Cosby Show, playing one of Rudy’s friends who is invited over for a slumber party. She was billed under her real name, Alicia Cook, and I don’t believe she had any lines during the episode, but she does get to ride on Bill Cosby’s knee. She plays the kid in the grey clothes with the short afro hair and, my God, if you didn’t know it was Alicia Keys, you’d swear she was a boy!