Kelly Clarkson was on her way to soundcheck for the IHeartRadio Music Festival when she came across a street performer covering Tina Turner and nailing it. Clarkson approached the singer and offered to tip her, but the performer didn't recognize Clarkson as a famous vocalist. They ended up doing a duet of Turner's "What's Love Got to Do With It," and the moment when recognition hit the performer was captured on video. Clarkson had to leave for her festival performance but left the singer with a memorable experience and words of encouragement.