Everyone knows about Jennifer Aniston's healthy lifestyle. The all-American beauty has a passion for yoga, cooking organic meals and walking Norman and Dolly on the beach. Not only does Jennifer exercise and eat right, but she has also been drinking the biologically best water, smartwater.

Whether it's the electrolytes (to help rapidly hydrate her body) or the fact that smartwater is the purest water you can get, Jennifer became an immediate fan. She believes so much in smartwater that she recently became an investor in the company and is even getting actively involved in the business.

As part of the partnership with smartwater, Jennifer co-created a limited- edition smartwater label, which will be available in stores across the country this July. Jennifer will also be starring in an upcoming advertising campaign for smartwater, shot by Mario Testino, which will be seen on billboards and print publications this summer.

"We were thrilled that Jennifer discovered smartwater and realized what a difference it makes to her healthy lifestyle," said Rohan Oza, Senior Vice President of Marketing, smartwater. "To us, Jennifer truly embodies what smartwater is all about as she combines substance and style like nobody else."