This petite actress/singer seamlessly transitioned from cute kid to precocious teen to sexy leading lady, all in front of the camera. After a promising start on Kids Incorporated, where she showed off her singing chops, Hewitt appeared in a few small-screen duds before leaping to stardom on Party of Five. Although film parts followed, her Party spin-off, Time of Your Life, quickly fizzled. Hewitt attempted to become both a movie and pop icon in the early '00s by releasing a sexy album (it did well in Japan) and appearing in a string of so-so features. But her myriad high-profile love affairs — Carson Daly, John Mayer, Antonio Sabato Jr. — are what kept her in the public eye. In 2005 she returned to her small-screen roots on the supernatural drama Ghost Whisperer.