Rihanna's "monster hook" was for a new song with Eminem

A few weeks ago col­lab­or­a­tion-shy chanteuse Rihanna tweeted that she'd just recorded a "monster hook" for someone and now we know that the someone was Eminem.

How do we know this?

Because he's just announced the track­list­ing for his new album, 'The Marshall Mathers LP 2', and the song they've col­lab­or­ated on is called 'The Monster'.

Other col­lab­or­at­ors on the album include Kendrick Lamar, Skylar Grey (on the charm­ingly-titled ballad 'Asshole') and Fun.'s Nate Ruess.

Here's the full track­list­ing in case you're interested:

1. Bad Guy
2. Parking Lot (Skit)
3. Rhyme Or Reason
4. So Much Better
5. Survival
6. Legacy
7. Asshole (feat Skylar Grey)
8. Berzerk
9. Rap God
10. Brainless
11. Stronger Than I Was
12. The Monster (feat Rihanna)
13. So Far…
14. Love Game (feat Kendrick Lamar)
15. Headlights (feat Nate Ruess)
16. Evil Twin