"On June 8, 1963, The Crystals' 'Da Doo Ron Ron' peaked at No.3 on the US singles chart. Produced by Phil Spector, who used a multi-track recording system to build the song layer upon layer to achieve a result that become known as a "wall of sound". Backing musicians include Glen Campbell on guitar, Leon Russell on piano, Hal Blain on drums and Nino Tempo on sax."