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Let Doritos and Pepsi Max be the soundtrack to your summer with their Rock Your Summer™ Sweepstakes. Just snap a pic of your favorite Frito-Lay snack paired with a Pepsi drink to get a free music download, and the chance to win summer-upping prizes -- each of which way better than anything that comes in the bottom of a cereal box. So snap that pic, then check out this suite of tune-enabling goods: