The Happening

I always liked this song but never knew the name of it. 

Key change happens when Diana throws her arms up in the air.

-Tony

Chain Reaction

'Chain Reaction', performed by Diana Ross. If I'm being conservative, I can hear five changes. If I'm being liberal, I can hear eight changes. Haha. I reckon there are half-steps into each chorus, and then into each repeat. Two after the break, and two in the outro.
-James L Brown