Hot Head Bop beta in DKC?

This topic popped up at the DK Vine forums last night. Made me recall that in 2005 or 2006, I was playing DKC on the original SNES and after a while my game glitched up & started playing the Hot Head Bop theme from DKC2. I mean, I could've simply imagined it or dreamed it (as this was 6-7 years ago) but I remember posting it in back when it happened...the response was to that was something like "Hot Head Bop is indeed in the DKC Rom, but it's inaccessible during normal gameplay"
Then last night, I figured out that the lava levels were probably originally intended to be used in DKC's Chimp Caverns based on a number of reasons. This made me wonder: has anyone, when hacking DKC, ever discovered the Hot Head Bop tune and managed to get it to play (or even extract it from the ROM)?
Then last night, I figured out that the lava levels were probably originally intended to be used in DKC's Chimp Caverns based on a number of reasons. This made me wonder: has anyone, when hacking DKC, ever discovered the Hot Head Bop tune and managed to get it to play (or even extract it from the ROM)?