DETROIT, MI -- Eminem confirmed Sunday night on his Twitter page that something called Shady XV will surface on Black Friday.

What it exactly is anyone's guess, but fans are guessing on social media websites like Twitter and Facebook it's a new album or some kind of greatest hits compilation.

Check out the teaser video for Shady XV below (click on twitter link):

Shady XV could be tied to the 15-year anniversary of Eminem's The Slim Shady LP.

The Slim Shady LP was released Feb. 23, 1999 and was recorded at different times from 1997-98 at Studio 8 in the Detroit suburb of Ferndale.

The Detroit Free Press reported in January that Studio 8 is one of five Ferndale studios at the epicenter of Detroit's music recording industry.