Photo by Kevin Winter/Getty Images.

Attention good people of D.C.: You have less than an hour to get to the Armory Mall (2400 East Capitol Street SE) to see Stevie Wonder perform a short, 2-3 song concert. Best part? It’s free.

The “pop-up” show is being billed as a “once in a lifetime concert” and is happening to promote Wonder’s “2015, Songs In The Key of Life Performance. He’ll be traveling to Philly and New York today to do similar pop-up concerts.