John Mellencamp unexpectedly rocked the Rock Hall in Cleveland with a spur-of-the-moment short set outside the building.
The Indiana singer was there to check out an exhibit devoted to him at the Hall's museum. As he was leaving, he spotted a local band, Pop Fiction, performing as part of Labor Day weekend festivities and joined them. There's footage of him performing "Hurts So Good," "Pink Houses" and "Cherry Bomb."
Mellencamp closed out his Sad Clowns and Hillbillies Tour at Canfield Fair in Canfield, Ohio, outside Youngstown, on Sunday.