Rare Earth

Rare Earth is an American rock band affiliated with Motown's Rare Earth record label (which was named after the band), who prospered in 1970-1972. Although not the first white band signed to Motown, Rare Earth was the first big hit-making act signed by Motown that consisted only of white members.

In other words, Wikipedia, these soulful light skinned brothas ROCK! Check out their two biggest hits: Get Ready and I Just Want to Celebrate