Superstar Beyonce shocked a group of New York high school students this week when she turned up and took part in their dance session.
Shrieks of delight could be heard as the 29-year-old strolled into the hall where the youngsters were performing and joined in the fun herself.
But to their credit, the middle schoolers didn’t miss a beat, despite having celebrity in their midst.
They were participating in the dance as part of Michelle Obama's Let's Move campaign.
Schools around the US took part in an effort to encourage students to get in shape.
The mass workout was a pre-choreographed dance exercise routine, performed to Beyonce's specially-recorded track, Move Your Body.
At the same time that the entertainer was getting her groove on, First Lady Michelle was also joining in with the fun with some Washington schoolchildren.
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