I just watched the documentary "Standing in the Shadows of Motown" on the musicians behind a huge amount of their hits in Detroit. I bet pretty much any Motown hit you can think of, the Funk Brothers were responsible for instrumentals, all those catchy riffs and beats that make you wanna dance, you can thank them for. Sadly, they didn't get much recognition at the time, everyone preforming and working with Motown knew them, but the general public did not. SO if you want to learn more and listen to some great tunes and stories, you should definitely check out the documentary.
Also I had to include Dusty Springfield singing "Can I get a Witness" because it is such a fabulous version, though originally of course it was Marvin Gaye with the Funk Brothers.