Payday 2 and Hotline Miami. It obviously had to happen. And now it has.
Payday 2: Hotline Miami is a new piece of Payday 2 DLC available now on Steam.
The $7 content pack includes an all new heist and seven achievements, plus a bunch of Hotline Miami-themed content: eight new weapons, eight new patterns, eight new masks and eight materials.
You need to also own Hotline Miami on Steam in order to unlock some of the content. Gosh.
Both Overkill Software and Dennaton Studios worked on the pack. Apparently the collaboration came about because the team "at Overkill fucking love Hotline Miami".