See Brad Paisley Join Demi Lovato and Nick Jonas for Somber 'Stone Cold'

Paisley also performed his current single "Without a Fight" with Lovato at Washington, DC show

Brad Paisley brought his guitar and vocal skills to the stage at Washington, DC's Verizon Center, where Demi Lovato and Nick Jonas' Future Now tour played on July 26th.

Paisley and Lovato first sang the country star's current single "Without a Fight," on which the pop artist duets. Later they were joined by Jonas at the piano for the somber breakup ballad "Stone Cold" from Lovato's album Confident. With only the two instruments accompanying her, Lovato has plenty of room to throw in some soulful vocal runs and reaches into the stratosphere for the song's crowd-pleasing final moments.

The country performer and pop artists part ways today, with Lovato and Jonas heading to Columbus, Ohio for a July 27th show at the Schottenstein Center and Paisley bound for the Klipsch Music Center in Indianapolis on July 30th. "Without a Fight" is the first single from Paisley's forthcoming 10th studio album.