WATCH: Bruno Mars in Eminem's New Music Video, "Lighters"

We have to admit, we weren't exactly expecting to see old school pop crooner Bruno Mars in the video for "Lighters," one of the first singles off of the highly anticipated album, Bad Meets Evil, from Eminem and Royce Da 5'9". Why? Well, mainly because the Doo-wops & Hooligans singer just seems a little bit, um, on the softer side of things to be making an appearance on the album of these hard core Detroit natives. But there Mars is, singing the hook on the relatively upbeat single, which he also helped to produce with his Smeezingtons team.

Watch the video below: