Students at a New York City public school working out to a Beyonce song got a big surprise when the superstar walked in and joined them.
About 85 students at P.S. 161 in Harlem were in the middle of a choreographed routine Tuesday to a song adapted from Beyonce's hit "Get Me Bodied" when the singer arrived.
The children were participating in a national simulcast of "Let's Move Flash Workout." It's part of first lady Michelle Obama's fitness campaign.