"The Girl Is Mine" by Michael Jackson featuring Paul McCartney.
Reminds me of my old best friend from primary and middle school, David Savage. He had the "Thriller" album on tape and when I went round to his house, we would often act out some of the songs, specifically this song and "Thriller" itself. David would always be Michael Jackson and I was always Paul McCartney, and we would mime the song to each other pretending we were arguing over a woman.
So when you listen to this song now, imagine two boys aged between about 8 and 10 pretending to fight over a girl who doesn't exist. Awww, how cute.
P.S. For the song "Thriller" I had to be the guy who does the narration bit. As he only really appears at the end, for the bulk of the song I had to pretend to be someone who was really scared of David/Michael Jackson.