Real name: Francis Rodney Zambon. Also wrote Hooked On A Feeling, Moody Blue and cowrote Always On My Mind.
Elvis Presley [n°1 US & B; with same musicians as Mark James]
B.J. Thomas [recorded prior than Elvis]
Waylon Jennings & Jessi Colter [n°2 C&W in '76]
Guido Belcanto [as Door Achterdocht Verdoofd]
Dwight Yoakam [in film Honeymoon In Vegas]
Billy Swan [Sun recording]
Gareth Gates [n°1 UK]