John Gregory Bettis is an American lyricist, best known for his long-term songwriting partnership with Richard Carpenter of The Carpenters. He wrote the lyrics for "Top of the World", a hit for both Lynn Anderson and The Carpenters. He wrote several more hits for The Carpenters, including "Only Yesterday", "Goodbye to Love" and "Yesterday Once More". He later wrote hits for other artists including Madonna, Michael Jackson, The Pointer Sisters, Conway Twitty, Diana Ross, Jennifer Warnes, Peabo Bryson, George Strait ("Heartland"), Juice Newton, Ronnie Milsap, Barbara Mandrell, 38 Special, New Kids on the Block, Donna Summer, Barbra Streisand, Whitney Houston

Richard Lynn Carpenter is an American musician, singer, songwriter, and record producer, who formed half of the sibling duo the Carpenters alongside his younger sister Karen. He had numerous roles in the Carpenters, including record producer, arranger, pianist, keyboardist, and songwriter, as well as joining with Karen on harmony vocals.