Taylor Swift is helping tackle childhood obesity. The country songbird joined former New Orleans Saints running back Deuce McAllister, former Tampa Bay Buccaneers linebacker Derrick Brooks and former Tennessee Titans running back Eddie George at an elementary school in New Orleans, La. on Wednesday for the NFL's Play 60 campaign. First Lady Michelle Obama was also there to talk about her "Let's Move!" campaign and even changed into her gym clothes for a workout with kids. See more photos from the event here.

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