We play Mustang Sally late on in the second set but only if we can get some ladies up on stage to sing the BV's. This usually works very well. Occasionally we get some really good singers!
Superstition is a great dance track played at the right speed (not too fast). We morph into Rappers Delight, Good Times, Another one Bites the Dust etc. before bringing it back for the 3rd verse.