A Rick Roll is a prank pulled on the internet where a person falsely links another to a YouTube video of Rick Astley singing "Never gonna give you up". It was first mentioned in America voted, and… IT’S A TRAP! whereJoshmanaged to get on American Idol and Rick Rolled the entire nation. It was also briefly mentioned in Tragedy + Irony = April Fools Comedy! as one of the many April Fools pranks that can be used.