HOUSTON, TX - OCTOBER 18: Percy Sledge performs during the 1st Annual Clay Walker Gala & Live Performance To Benefit MS at House Of Blues on October 18, 2012 in Houston, Texas. (Photo by Bob Levey/WireImage)
HOUSTON, TX - OCTOBER 18: Percy Sledge performs during the 1st Annual Clay Walker Gala & Live Performance To Benefit MS at House Of Blues on October 18, 2012 in Houston, Texas. (Photo by Bob Levey/WireImage)