What makes Buttered Popcorn by The Supremes notable?

'Buttered Popcorn' is notable for being The Supremes' first release under the Motown label, paving the way for their future success. Though it did not achieve significant chart success initially, it laid the groundwork for their later hits and helped define the Motown sound that would dominate the 1960s. Released on July 21, 1961, 'Buttered Popcorn' marked The Supremes' debut single, setting the stage for their rise in the Motown hierarchy. At this point, the group was still establishing their identity in a competitive music landscape dominated by male artists. This track introduced their signature sound, which would evolve rapidly in the following years.