For some reason donkeys years ago, me and my mates started possibly the least talented band in the word - the mightly Harmonic Selotape.
Given a couple of us were big GNR fans, we wanted to cover one of their songs, but basically didn't have the musical ability to be able to, except for Sentimental Movie.
Here is the horrific evidence, in conjunction with a random film of the former drummer repeated for a painful 3 minutes with naive basic movie making skills (first stab at doing anything with Movie Maker)
http://www.youtube.com/watch?v=X52AmTLCqh4