Nothing complex about this topic. Just think of a pop song that you feel associates to a comic character and shout it out. Try to avoid the obvious stuff like songs from Five For Fighting or Crash Test Dummies for Superman or the obligatory Spider-Man theme song. I'll throw out a couple examples.
Silver Surfer - Space Oddity (David Bowie)
Nick Fury - Secret Agent Man (Johnny Rivers)
The Flash - Don't Stop Me Now (Queen)
Mystique - Evil Woman (Electric Light Orchestra)