Collective Soul's "Shine". Most of the time, they played the radio edit. It always felt a little odd like it was cross-fading between two different songs that happened to sync up pretty well.
Then, they played the full cut on the radio once and I found out why. It sounded like what happens when a band just about loses it completely and barely manages to pull things back together in time for the last few bars. I couldn't believe they let it out the door sounding like that....