premise: Don Hall is a songwriter.
hypothesis: Daryl Franklin Hohl ( born October 11 , 1946 ) , known professionally as Daryl Hall , is an American rock , R&B , and soul singer ; keyboardist , guitarist , songwriter , and producer , best known as the co-founder and lead vocalist of Hall & Oates ( with guitarist and songwriter John Oates ) . Don Hall is an American film director and writer at Walt Disney Animation Studios .