1. Open your Winamp/iTunes.
2. Put the shuffle-mode on.
3. Find a picture of the first 20 artists. If the same artist comes again, skip. (I'm gonna make it 10 since I can't find out how to use the tag system.)
4. Have your friends guess who the artists are.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
I bet you the most you'll find of these is 3 bands total.