The classic Rickroll meme is one of the internet's most enduring pranks. It works by baiting someone with a tempting link, only to redirect them to Rick Astley's "Never Gonna Give You Up" music video.
The humor comes entirely from the unexpected bait-and-switch. You can use this format anywhere online, from comment sections to group chats. Just post a link promising something interesting, but make sure it leads to the song.
It works best when the fake promise feels believable. The ultimate payoff is watching someone realize they've been tricked by a decades-old joke that never gets old.