No. 7: Willow Smith

Birthdate: October 31, 2000 (age 9)

Why She's Hot: Willow Smith will never forget the summer of 2010. The nine-year-old daughter of actors/musicians Will and Jada Pinkett-Smith officially launched her music career in September when she released her contagious first single, "Whip My Hair," which immediately drew comparisons to pop diva Rihanna. Just a few days later, the fashionable pint-sized singer was signed to none other than Jay-Z [1]'s Roc Nation label and is rumored to be starting her own clothing line. She recently released a teaser to the video and is said to begin working on her debut project soon. Big brother Jaden [2] may have the eyes of Hollywood on him, but it's Willow who is going to own your ears.

Willow Smith Blooms on R&B/Hip-Hop Songs Chart [3]

Video Below: Willow's "Whip My Hair"

Next: Nick Jonas [4]