Changing Tunes

Watching this show "The Voice" brings up an old question for me. All of the singers are doing cover songs of other artists, usually very popular songs. Personally, my opinion is if you're going to do that, stick with the way it is in its original "popular" version. Some of them try to put their own spin on it. In some degree that's okay, but if they do it too much, it's a turn off. That's just me though. I know some people don't feel that way.