Question: What American record producer, songwriter and guitarist wrote and produced the song "My Old Piano" by Diana Ross and is the lead guitarist in the band "Chic"?
Sentence (from "A Brand New Day (The Wiz song)"): "A Brand New Day", also known as "Everybody Rejoice", is a song from the 1975 Broadway musical "The Wiz" written by American R&B singer and songwriter Luther Vandross.
Relevant evidence: No