I'm Bayesed and I know it

If you're too young to realize where the title reference comes from, I'm gonna make you lose your mind. It has something to do with parties and rocks and anthems. Actually, no, I just want you to have a good time so I'll instead ask you to take a look at the title picture. I am obviously drawing your attention to both the title and picture for a reason. With the title, you might not have realized there was a "pattern" to it till I pointed it out.