Harmony is a family affair for the Sha La Das, a vocal quartet whose music is steeped in R&B and doo wop tradition while also adding elements of '60s soul, rock & roll, and psychedelic pop to create a sound that is moody but lush and soulful. Featuring a veteran harmony vocalist and his three sons, two members of the Sha La Das have worked with retro-soul artist Charles Bradley before a producer was knocked out by their close family harmonies and convinced them to record as headliners. They made their debut with a 2016 single before moving on to a full-length album two years l...