As for how she maintains her lean figure, the actress says she keeps fit by working out five or six days a week, mixing it up with yoga, hiking and spin class.
"[Find] more than one form of exercise that you love to do and then [mix] it up," Rinna advises on her website. "One day do the pilates, and then the next day you play tennis. Maybe you can even incorporate a Friday night salsa dancing class with your girlfriends! You gotta keep it fresh to keep yourself interested."
The new season of Real Housewives of Beverly Hills kicks off Tuesday, Dec. 6 at 9/8c. Watch the clip below for more on Rinna's changing look.