Rose Royce with Persuaders, Bloodstone, and more

Los Angeles-based group Rose Royce began as Edwin Starr's backup band before signing with producer Norman Whitfield. They achieved massive national recognition with their 1976 hit soundtrack for the film Car Wash, which featured chart-topping singles like Car Wash, I Wanna Get Next to You, and I'm Going Down. They followed up with hit albums In Full Bloom and Strikes Again, generating numerous R&B and pop hits, and became popular concert attractions in England.

Bloodstone, formed in Kansas City as the Sinceres, evolved from '60s doo wop to '70s funk. Known for "Natural High", they succeeded in R&B/pop charts and starred in "Train Ride to Hollywood".

Memphis soul trio formed in 1970, Harold Scott, Jasper Phillips, and William Johnson hit R&B charts with "Dedicated to the One I Love" in 1972 and "I Found Love on a Disco Floor" in 1976.