I'm not sure that I understand the phenomenon of the rick roll, but it totally cracks me up. If you haven't experienced it yourself here's how it works. You will be lured to a weblink thinking it is one thing and it turns out to be the video for Rick Astley's 1987 hit song, Never Gonna Give You Up. If you take the bait and click the link, then you have been rick rolled. I myself, because I am completely naive and gullible, have been rick rolled. Several times. And I laugh my ass off every time. I was just rick rolled a few minutes ago, but it wasn't the original Astley video. Instead, I got this.
Hilarious! And just in case you are interested, here is the original clip.