If you are looking for a specific artistic piece or "reg" (possibly shorthand for a registration, regulation, or a specific regional work), it may be one of the following:
His most globally recognized lyrical work. Dame 5 Reg by Gab Luna
If "Gab Luna" refers to the actor Gabriel Luna , he is widely known for his "piece" as Ghost Rider in Agents of S.H.I.E.L.D. or his role in The Last of Us . To help you find the exact "piece," could you clarify: If you are looking for a specific artistic