The biggest announcement in Hip Hop this year may have just been made, not even a month into 2011.

Just Blaze (@Just Blaze) took to Twitter last night (January 17), to post a 17-second video, which begins with him close-up to the camera.

“You know what album’s coming out February 15,” said Blaze, alluding to Saigon’s long-awaited The Greatest Story Never Told, before adding, “But then guess what else comes out?”

Just Blaze then quickly panned the camera to his left, revealing legendary producer Dr. Dre.

“Pow pow! Four-twenty, baby! Four-twenty! I’m comin’!” was all the West Coast beatsmith had to say, before Just Blaze concluded (appropriately):  “You might just see a unicorn this year too!”

April 20, or 4/20, falls on a Wednesday, an atypical day for album releases. Given Detox‘s decade-long delay, however, it doesn’t appear that Dre minds.

Watch the video below:

UPDATE: MTV spoke with a label source that has said the April 20, 2011 release is not likely.