Monday's Musical Challenge

It's Monday, so I thought i'd bring you something to take your mind off of it. A puzzle... a challenge, whatever, maybe you'll like it. Maybe you'll do better so far than me. Now, you should click and enlarge the thing so you can see more detail. This is kinda tough, I know a few of the bands are in your face and really easy but some I can't do... My friend Jessie sent it to me, and I know it's been floating around so if it's overload, sorry, but I thought it might be a good Monday time-waster. If you can find them, there are supposed to be 74 bands in this pic... See what you can find. Good Luck, Happy Monday and Happy Hunting!