This is the kind of thing that happens when you're asked to take some photos for your roommate's band.
My first paid photograph: a picture I took a year ago with a crappy old Kodak Z740 at the 2006 Fake Prom. The Toronto Star was running a piece on the 2007 Fake Prom and lo and behold they wanted to use one of my pictures. I think they had a photo shoot that fell apart or something. I got paid a standard freelance fee and had to write up and invoice and everything. How exciting!