News Hollywood's Sweet 'Summer Obsession' Just Got Sweeter Published 3:00 PM PDT, July 2, 2014 ETONLINE Celebrities like Charlize Theron and Maria Sharapova have been known to frequent frozen yogurt shops and now you have a chance to visit one of their favorites for free!CLICK HERE TO ENTER ET's Pinkberry Giveaway. ET will be giving away one $50 Pinkberry gift card to 5 lucky winners this summer, but you have to enter before July 6, so follow the link above to get started.And if your sweet tooth still isn't satisfied, check out Pinkberry's #mysummerobsession contest. CLICK HERE FOR THE OFFICIAL RULES of the Pinkberry Giveaway.NO PURCHASE NECESSARY. Open to US residents 18 and older. Entries must be received by July 6, 2014 at 11:59pm PT to be eligible.