Coldplay’s Chris Martin, Ed Sheeran, Willie Nelson, Usher and Janelle Monáe have all signed on to take part in Stevie Wonder: Songs in the Key of Life – An All-Star Grammy Salute. The live concert will take place February 10th at Los Angeles’ Nokia Theatre, while the CBS broadcast airs February 16th…….

Source: RollingStone
Link: Chris Martin, Ed Sheeran, Willie Nelson Join Stevie Wonder Tribute Concert