7 Unusual Celebrity Workouts These celebs have incorporated tree branches, housework, and sex into fitness By Margeaux Klein, Newser Staff Posted Jun 8, 2014 8:29 AM CDT 1 comment Comments Matthew McConaughey loves to exercise. (AP) (Newser) – Celeb-watchers are already familiar with the bizarre beauty rituals and kooky diet plans of the stars, so it shouldn't come as a surprise that some A-listers also like to think outside the box when it comes to physical fitness. Below are seven unusual ways celebs stay in shape: Matthew McConaughey has never played Tarzan, but the 44-year-old Oscar winner's penchant for doing pull-ups on tree branches (and being shirtless) will certainly prepare him for the role should he ever get a chance. "When I work out, I like to run. If I see a tree, I’ll stop and do pull-ups. Randomly, I’ll do push-ups, too. And this is how I get the body I want!" he told Men's Fitness last year. Nude yoga is all the rage in New York, but Michelle Rodriguez proved she was ahead of the trend when she posted an Instagram photo of herself striking a contemplative yoga pose in the buff while on vacation in February. Sure, anyone can run backward on a treadmill, but it takes a brave soul like Oasis frontman Liam Gallagher to pull off running backward on the streets of London without crashing into anything. The bizarre practice is called "retro running" reports the Sun. Reality star Audrina Patridge's secret to always looking bikini-ready? Vacuuming her house in high heels. "It works my calves and butt," the Hills star once told TV Guide. When you have lavender-colored hair, no ordinary exercise routine will do. Kelly Osbourne told Shape last year that she hula-hoops every day and even throws hula-hoop parties on Saturday nights, complete with "ridiculous outfits," that leave her and her guests super-sore the next day. The cardio benefits of sex have long been touted by health experts, but getting it on five times a day? That's how former Scary Spice Mel B. claims both she and her husband stay in peak physical condition, reports the Huffington Post. She's not the only celeb using sex as an alternative to going to the gym, either. Meanwhile, her old bandmate Victoria Beckham is said to follow an "intensive regime of facial yoga," reports the Guardian. That's yoga for your face, people. Click here for 25 more crazy celebrity workouts and diets.