P.J. Proby (born James Marcus Smith, November 6, 1938) is an American singer, songwriter, and actor. Given the stage name Jett Powers by top Hollywood agents Gabey, Lutz, Heller and Loeb, he took acting and singing lessons, and appeared in movies with small roles. Two singles, "Go, Girl, Go" and "Loud Perfume", were released on an independent label. He has portrayed Elvis Presley and Roy Orbison in musical theater productions and had a recording career in his own right. The stage name P.J.