Pepsi and Beyonce are teaming up for this year’s Super Bowl halftime show. Fans are encouraged to submit photos of themselves in specific poses—head bopping, feet tapping, hip shaking—with the hashtage #PepsiHalftime. Hundreds of the photos will be used to introduce the show as Beyonce takes the stage. Pepsi has been promoting the contest via Times Square billboards. People who submit photos by January 11 are eligible for a chance to win a trip for two to New Orleans and see Beyonce perform from the field.