Makin' it easy
For those in need of a refresher... the "Island of Lies" and it's population of not-actually-dead musicians was first introduced in the Return of the King storyline, and was revisited once since then.
Everybody has their favourite novelty cowbell song. (Everybody.) But for my money it's hard to beat the pure excess of the Beatles' Everybody's Got Something to Hide Except Me and My Monkey, where relentless clanging dominates nearly the entire left stereo channel. I would never say anything bad about the Beatles... but I might thoroughly imply it, if you know what I am saying.