Hollywood celebrities like Reese Witherspoon and Jennifer Aniston swear by yoga to keep themselves trim.

Here's a list of stars who practice yoga, a discipline that goes back to ancient India, religiously, reports eonline.com:

* Reese Witherspoon: The actress is passionate about her yoga practice with expert Kirschen Hagenlocher. "We practice strong flow around three times a week," said Hagenlocher.

* Jennifer Aniston: The "Friends" star has been training with yogi, wellness expert and author Mandy Ingber for years. Aniston credits her trim and toned figure to the relaxing yet powerful practice.

* Vanessa Hudgens: "I become fitness-obsessed, sometimes I work out twice a day," said the "High School Musical" star. She said she loves to practice yoga because it's good for the mind and the soul.

* Gisele Bündchen: The model relies on the calming practice to strengthen long, lean muscles and tone her body. * Miranda Kerr: The model considers yoga to be one of her favourite fitness regimens.