I don't think gimmicky walk on music is a must, but if I had to for whatever reason (contractually obliged etc.) then I think I'd pick something by Slayer. Any of Dean Skin Mask, South of Heaven or Tormentor would do.
After careful consideration I’m now leaning toward: This content is protected Or This content is protected Back in the day I worked with a 30-something police officer who had fought about 100 amateur fights in his youth and decide to have a short pro career on the local club circuit. We nicknamed him “The Law” and brought him out to “I Fought the Law (and the Law Won)” by the Bobby Fuller Four. The place would explode during his ring walk with people singing along.