Dick & DeeDee was an American musical duo that gained prominence in the 1960s. Comprised of Dick St. John (Richard Gosting) and DeeDee Sperling (Mary Sperling), their style was a blend of pop, rock, and folk influences, emphasizing harmonious vocals. They are best known for their hits "The Mountain's High" and "Thou Shalt Not Steal" which have left a significant mark on the 60s pop music scene. Their distinct sound and memorable performances contributed to the evolution of pop music during this era.