Stone Cold - Rainbow

From 1982.  This was the end of the album rock radio era in Rochester, NY where I grew up.  Ritchie Blackmoor and Ronnie James Dio have and had top hard rock/heavy metal credentials but songs like this (which is in the same subgenre as Foreigner, who was king at this time) have huge pop instincts.  The hard rock elements are reined in and the pop formula is served.  The B part even has a funk feel (Chicago was also huge at this time).  The early 80s were a time of hybridization and overlap among genres in rock.  The chord progression in the chorus is really nice. There was certainly a lot of pursuit of the hit and subjugation of creativity, but I think the successes are still very listenable.  And the pop formulae are distilled and therefore easier to decipher.