From 1975's self titled lp, here's Yvette Stevens akak Chaka Khan and Rufus with "Circles." This lp is known for the single "Sweet Thing." GREAT lp, well all of their albums are great. http://www.zshare.net/audio/62495343f1cb1bd5/
From of my favorite groups and hip hop albums, here's Little Brother with the "Circles" sampled "The Becoming.