Billboard #1 Hit Wonders of the 1970s (Part 2: The 70s are Weird As Well) by CourtneyKhaaaaaan

Question 10

The 1975 winner for Best R&B Performance by a Duo or Group, WHAT BAND hit it big with "Shining Star"? These elemental guys would later be mainstays of the disco era with hits like "September" and "Boogie Wonderland."

Earth, Wind and Fire