It makes total sense to teach kids CPR using a song they know. After all, the firefighters who taught me and my daughter CPR used songs WE were familiar with (though they did explain that "Stayin' Alive" by the Bee Gees sounded a lot better than "Another One Bites The Dust" if you're singing it out loud while you're doing chest compressions!)
If you don't know CPR, watch this video. If a kid can learn it, you can too....doo doo doo doo doo doo....