*First line is the band name. 1974. This trio of singers were from Philadelphia in1963, their last year of high school. This song was written by Gamble and Huff, who developed the Philly sound. Gamble and Huff were inducted into the Rock and Roll Hall of Fame. When the lead singer heard the song she was angry. She thought it was too simple. Every line in the song is a question. It sold millions of copies and they performed the song for Prince Charles.