Music Cromartie humming song

Huhumhumhuhuhumhumhuhum hum...
...huhum humhuhumhuhumhuhuhumm...

Alright, does anyone know at least a hint of what song was being hummed by the entire cast in "Sakigake! Cromartie High" in one of the episodes?

It's stuck in my head, somewhat, I suppose there should be a real song somewhere, no?

 

From what I understand, the name of the song is included in the closing credits of that episode, when I get the chance, I'll take a look to find out for sure.

-UK