There are fans of famous musicians, and then there are fanatics. There are fanatics, and then there is Toronto teacher and musician, Mark Baker.

Baker has been dubbed the most famous U2 fan on the planet, and was even given a nickname by Bono himself - U2BROTHR.

Oh yeah, and he's had a documentary film cover his admiration for U2 as well.

Learn more about your ad choices. Visit megaphone.fm/adchoices