J.J. Watt dons Batman costume to greet kids at children’s hospital

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Some NFL fans think Houston Texans star defensive end J.J. Watt has superpower skills on the field.

Now he’s flexing his superhero muscles for a special group of fans.

Watt wore a Batman costume for a surprise appearance at Texas Children’s Hospital. He met and posed with patients for photos, played games and helped the kids paint pumpkins during his visit.

Watt’s surprise visit was a big hit and has quickly gone viral on social media.