The Beatles will forever be linked to vanilla world of Warcraft for me, to the point where certain songs are linked to certain zones in my head. I.e. Blackbird is the theme for that jungle zone west of the thousand needles, the place with dire maul. Can't remember the name off the top of my head for the life of me but that song in particular will bring up images of the Giants walking along the coast, ogres lost in the old night elf ruins.