Star Matchmaker

With Christina Aguilera engaged, pick the best dates for her younger sisters in pop: Ashlee Simpson, Christina Milian and Hilary Duff

ASHLEE SIMPSON, 20

The reality-show star and notorious lip-syncher says her only love is her music. But with big sister Jessica as an example, she gets the important things in life: "Enjoy your family and friends."

Who would make her happy? Our candidates:
Wilmer Valderrama: She's been spotted clubbing with friend Lindsay Lohan's ex
Ryan Cabrera: She can't seem to get this guy out of her system
Jesse McCartney: The TRL fave could serenade her with his Beautiful Soul