The cast of Parks and Recreation is getting a new member for a night: Michelle Obama.

The US First Lady’s office says Mrs Obama will appear on the NBC sitcom’s season finale on April 24.

The show’s Twitter account said it was “time to get real about Pawnee’s obesity” – a reference to Pawnee, Indiana, the fictional town where the show takes place, and the First Lady’s campaign against overweight children.

The show’s star Amy Poehler lent the campaign a hand last week when she appeared at a Let’s Move event in Miami, Florida, where Mrs Obama joked that she and Poehler were best friends.

Mrs Obama is not the first White House figure to appear on the show. Vice president Joe Biden made a cameo appearance in 2012.

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