Maren Morris. Pic/AFP

Country singers Maren Morris, Eric Church, and Brothers Osborne performed a moving rendition of Eric Clapton's Grammy winning "Tears in Heaven" at the 60th Grammy Awards here as a tribute to victims of a mass shooting at a music fest in Las Vegas last year. The artistes had performed at last year's Route 91 Harvest Festival, where at least 58 people were killed when a gunman opened fire from the 32nd of a hotel, on the crowd in October. It was one of the deadliest mass shooting in the recent US history.