- Artist: 810 & The Black Sunn
- Track: Before the Mourning
- Feat. 810, The Black Sunn, Green Street
- Producer: Renaissance (of Green Street)
- Album: None (Promo Single)
Five months after the release of their acclaimed collaborative debut LP, United Division, The Back Sunn and 810 have rejoined forces to bring fans a brand new promo single. On Before the Mourning, the Baltimore-repping Booth faves receive guest assistance from Boston-bred, Brooklyn-based trio Green Street; Renaissance provides a laid-back instrumental, while crewmates A-Live and Soupa join the headliners on the mic. Though 810 and Black Sun don't currently have plans for a sophomore project, they recently announced that they will be performing together in five cities as part of the Under Armour Third Rail Jam.