I know this isn't pre-hospital, but I just feel I must share something with you:
We had an elderly lady into the hospital, in cardiac arrest. So, she has no pulse and isn't breathing. Unfortunately, there is a tendency for Nursing Homes to call 999 when one of their residents dies, and this leads to a sequence of events, culminating in them arriving at the hospital, only to be certified a few minutes later.
Anyway, we start off as usual, continuing the cardiac massage. We need to compress the chest at a rate of 100 beats per minute, 30 beats followed by 2 breaths. It just so happens that the nursery rhyme "Nellie The Elephant" has just the right rate, and 2 verses makes exactly 30 beats. So, it is not uncommon to see the person providing the cardiac massage mouthing the words to "Nellie" while doing the compressions.
Today, one of my junior doctors demonstrated another song that fits the bill, of 100 beats per minute, 30 beats to a verse. However, while some of you may not think it is entirely appropriate to be mouthing "Nellie the Elephant" while attempting resuscitation, even I balked at the sound of my junior singing, fairly loudly, "Another One Bites The Dust", as she vainly tried to keep this lady alive.