The Dancing With the Stars contestant Danica McKellar heads to practice in a neon sports bra and matching yoga mat.
Britney Spears covered up her toned stomach in a shiny "sauna suit" while working up a sweat in Calabasas, Calif.
Vanessa Hudgens looked zen after a yoga class in L.A., carrying her belongings in a Victoria's Secret Sport bag.
Kim Kardashian, along with her mom and sisters, continued to tape a segment for their reality show after a workout at SoulCycle in Beverly Hills.
Pink is well grounded on a bicycle in Venice, Calif. wearing a printed hoodie and sunglasses.
Hilary Duff stepped out of a L.A gym in a sleeveless top and printed leggings after working out with a male friend.
Nick Jonas showed off his muscular physique as he left his gym in West Hollywood.
Selena Gomez brought out her grunge style as she arrived at a dance studio wearing a black tank, beige pants, black Adidas high top sneakers and carried a black and red plaid shirt.
Stopping by a friend's house for a quick visit in Hollywood, Anne Hathaway looks ready to hit the gym.
Kerry Washington covers up her growing bump while walking (er, carrying) her dog Josie.
Khloe Kardashian keeps things color-coordinated as she makes her way out of a gym in Los Angeles.
Ellen Page heads to the gym in a jean vest, comfy sweatpants and a printed cap.
Pink practiced some yoga moves for charity at the Saint John's Health Center's Margie Petersen Breast Center event in Los Angeles.
Clad in a puff vest and matching tights, Gwyneth Paltrow made her way to a morning workout in Hollywood.
Transformers star, Rosie Huntington-Whiteley exited a ballet class in a puffy printed vest and gray workout leggings.
LeAnn Rimes squeezed in a workout while on vacation in Honolulu.
Amanda Bynes wore a graphic sweater and black workout leggings while en route to the gym in Los Angeles.
Former Pussy Cat Doll singer, Nicole Scherzinger lets her mane fly free on her way to spin class in Los Angeles.
Kate Beckinsale keeps her body in killer shape thanks to her dedicated yoga regiment. No wonder she looks so great whenever she steps out in a form-fitting outfit!
Are the Kardashian sisters inspired by Pink's aeriel performances? Kourtney and Khloe took their workout to new heights in color coordinated outfits at the Aerial Classroom in North Hills, CA.
Vanessa Hudgens got in a good workout at Runyon Canyon in Los Angeles while sporting a black cap and leggings with a white crop top with the word "Dank" in Disney font.
A fan of working out and going hiking, Lea Michele opted for a healthy smoothie in Los Angeles while wearing bright pink yoga pants.
Naomi Watts keeps it simple in a black top and yoga pants as she heads to work out with a friend in Brentwood.
Olivia Wilde heads to her morning Pilates class in West Hollywood with a pop of color sporting a yellow top, grey cardigan and black tights.