Charlie Rich Charlie Rich was an American country music singer and musician. A Grammy Award winner, his eclectic-style of music was often hard to classify in a single genre, playing in the rockabilly, jazz, blues, country, and gospel genres. He is perhaps best remembered for a pair of 1973 hits, "Behind Closed Doors" and "The Most Beautiful Girl". "The Most Beautiful Girl" topped the U.S. country singles charts, as well as the pop singles charts.