Seattle-natives and Grammy Award-winning band Soundgarden's singer and rhythm guitarist Chris Cornell performs during the 2014 NFL Kickoff presented by XBOX held at CenturyLink Field on September 4, 2014 in Seattle. UPI/Jim Bryant
Grammy Award-winning singer, song-writer and producer PHARRELL WILLIAMS performs during the 2014 NFL Kickoff presented by XBOX held at CenturyLink Field on September 4, 2014 in Seattle. UPI/Jim Bryant