220px-Three_Dog_Night_-_It_Ain't_Easy#5– Three Dog Night – “Mama Told Me (Not To Come)” – (1970)

This song was originally recorded by Eric Burdon & The Animals but the vocals in this version are superior to almost anything Eric Burdon ever set eyes on (no offense to Eric). In fact, the song was written by Randy Newman and you can almost hear Cory Wells mocking Newman’s singing style in his delivery. It is funky, groovy and just spot on awesome.