The hard-partying, harder-working Slaine has never been more exhausted than he was this Monday. It's no wonder; he'd been draining booze and hibernating in his Brockton lab for 17 straight days and nights recording his new The Devil Never Dies mixtape.

Slaine's looked weathered in the past. But in the wake of this most recent marathon session, his eyes were glassier than than they were on the tail end of his two-month tour with Tech N9ne, and after he completed months of filming for his roles in “Gone Baby Gone” and “The Town.