Stevie Wonder is having a busy day. The music legend is playing three surprise pop-up concerts today, including a free 3 p.m. show at Dilworth Park, at 15th and Market on the west side of City Hall. 

Wonder started the day with a short show at the Armory Mall in Washington, D.C., this morning, and will end with an evening appearance in New York at Central Park SummerStage. 

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The surprise performances are in advance of his fall Songs in the Key of Life tour. Wonder will play the Wells Fargo Center on Oct. 7. The tour will close at Madison Square Garden in New York on Nov. 24. 

Tickets go on sale Friday.