Daryl Hall & John Oates are an American pop rock duo known for their fusion of rock and roll with rhythm and blues. They collaborated with David Ruffin & Eddie Kendrick, former lead singers of The Temptations, famous for their soulful and distinctive vocal styles in the Motown era. This musical alliance resulted in a unique blend of pop-rock and Motown soul, characterized by catchy hooks and harmonious vocals. Their notable performance at the Apollo Theater in 1985 is remembered as a significant event in music history, illustrating the duo's appreciation for R&B and soul music.