Heather Locklear stepped out at TNT's 25th anniversary party on Wednesday, July 24, looking stunning and slim. Credit: Jason LaVeris/FilmMagic

Fifty-one and still fit! Heather Locklear stepped out at TNT's 25th anniversary party on Wednesday, July 24, looking stunning and slim. 

Wearing a black crotchet top dress with studded heels, the Franklin & Bash actress looked amazing at the Beverly Hills fete. 

Just recently, the mom to Ava, 15, (her dad is Locklear's rocker ex, Richie Sambora), showed off her rocking bikini body while vacationing with friends.

What's her slim-down secret? "Weights!" the blonde beauty told Chelsea Handler in June. "Stupid, boring weights."