37. Jessica Biel
So what if she was once named by anti-virus company McAfee as the most dangerous celebrity in cyberspace (do not open an email with her name in the subject). J.B.'s got the remedy for all these bony starlets, and enough assets to make Mr. Timberlake fall for her.
DECADE ACHIEVEMENT: Parading around in her underwear in I Now Pronounce You Chuck and Larry and getting Timberlake to actually put a ring on her.