The Big 5-Oh: September 25

"It's just more fun to be bad," Heather Locklear recently said, and although she was speaking of her characters (on shows from Dynasty to T. J. Hooker to Spin City), her own life has been anything but mellow. She dated a teen heartthrob (Scott Baio), married two rock stars (Tommy Lee and Richie Sambora), and is mother to a model (daughter Ava). Despite bouts with depression, anxiety, and meds, she's the consummate pro, says her old Melrose Place and Spin City costar Perry King: "The difficulty is, she's so heartbreakingly beautiful, you stammer your way through your own dialogue!"

See also: Obama's 50th birthday wish.