Tiffani-Amber Thiessen (we're keeping the "Amber" part, thank you) first implanted herself permanently into the minds of any young men who grew up watching her on Saved By the Bell in the '90s. She then somehow supercharged her sex appeal on shows like Beverly Hills 90210 and Charmed, before seducing us all again on the big screen in comedies like The Ladies Man and Hollywood Ending. Currently she's one of the hottest 42-year-olds on the planet, but she'll always be the beautiful Kelly Kapowski to us.