A good wrestling entrance theme is vital to the success of a wrestler in this era - it would be incredibly difficult for someone to get over with a Justin Bieber song playing him to the ring, or in fact to actually make it down to the ring. The right tune of course helps enhance the aura of a wrestler, propelling them to a higher level of popularity and makes the crowd immediately react; it takes only a moment to know when The Undertaker, Daniel Bryan or John Cena is about to enter the arena. For those stars, their themes fit perfectly and wouldn't work for anyone else - to the extend that a few bars can be enough to announce them and whip the crowd up into a frenzy. Over the course of a career, most wrestlers tend to change their entrance themes a couple of times, usually when they get a new gimmick or when their old song starts to feel stale, and while this can sometimes work out for their benefit, it can just as easily be a disaster. Not all change is good, after all, and the number of changed gimmicks that have spectacularly failed and threatened to ruin the appeal of iconic stars is enough evidence of that. Judging by the impact, and fan reception, there have been some wrestlers who must have regretted switching from what worked to something that was embarrassing and painful to the ears. Here are 11 of those stars who should have never changed their entrance themes.