I don't even know...
Wikipedia says:
In May 2007
[2] the song's
campy music video became the basis of an
Internet meme known as "rickrolling". It took its name from a
4chan meme known as "duckrolling", a
prank in which someone would post a blind quote to a post allegedly relevant to a discussion that upon viewing would prove to be a
non sequitur - specifically, an image of a
duck on wheels. Similarly, in a rickroll a poster provides a link they claim is relevant to the topic at hand which actually takes any one who clicks it to the Rick Astley video. The practice eventually became widespread enough to attract some coverage in the mainstream media.