Britney Spears served up a batch of down-home sweet tea at a charity event at the LA home of former Glacéau exec Rohan Oza the other night. It had some speculating the singer is in talks to market the drink with Oza, who now works as a consultant for a number of food and beverage companies. “Britney did make her homemade sweet tea for every one that night, and they loved it,” said a rep for Spears. “She made it from a secret family recipe she learned from her mother, who learned it from her mother. Britney makes it for her boys all the time. As far as a deal with any beverage company, I have no comment.”