Eminem is working on a new album but details are a bit -- shady.

News of Em's new project, thought to either be his 10th studio LP or a Shady Records compilation, came way via the movie trailer for The Equalizer, starring Denzel Washington. The preview clip includes snippets of audio of the Eminem’s new track "Guts Over Fear," featuring Sia. Towards the end of the clip, it says the song will appear in both the movie and on Shady XV, set for release on Black Friday, November 28th.

Since the premiere of the movie's trailer, Em posted another trailer-type video with flashing images of his greatest hits. To add more fuel to the fire, over the weekend "Shady XV, Black Friday" appeared on the Detroit rapper's official website, but has since been removed. It's also being reported the rapper and his camp have been tweeting the #SHADYXV hashtag since June and he's been seen sporting the title on a T-shirt at his Monster Tour co-starring Rihanna.

Em dropped the Marshall Mathers LP 2, less than a year ago.