YouTube shutting down until 2023 or April Fool's Day prank? If it is a prank, it's not the first time the video-sharing website attempts a joke on the world.

Google posted a video Sunday promoting a contest that has been going on since YouTube was created in 2005. This supposed contest has been going on for eighty years and will be narrowed down to one, which won't be announced until 2023, when the video-sharing website is re-launched.

"When we started out in 2005, we focused on rapidly increasing user engagement. We wanted an inventive way to draw people in and catalyze their creativity. The result? A contest for the best video on our site," competition director Tim Liston said. "Nearly eight years later, with 72 hours of video being uploaded every minute, we finally have enough content to close the competition. We've started the process to select a winner and as of tomorrow at midnight, we will be closing the site to submissions.

It's a prank after all. Google purchased YouTube for $1.6 million. This wasn't the first prank by YouTube on this day.

In 2008, every video on the main page was "Rickrolling," meaning when you think you are watching the video, suddenly, the Rick Astley video, "Never Gonna Give You Up" appears.

A new layout was claimed by YouTube in 2009 when a video on the main page was clicked. The layout of the page would turn upside down.

And last year, the April Fool's Day prank was for viewers to collect the best of YouTube videos for DVD, videocassette, Laserdic or Betamax tape.