When we posted about Rock Band earlier this week, people started leaving captions on this picture as if it were a caption contest. So now that they’ve started, why not take it all the way? This is Dan, JibJab’s community man and blogger extraordinaire, singing his heart out to either Linkin Park or Bon Jovi. The best caption here or on our Facebook page gets a free JibJab t-shirt in one week’s time! Don’t forget to check out last week’s winner too!