Darius: G-Major's hitting the stage to a plan D. (Implement plan Darius?) Which means new artists,

more variety, a very, very busy joint. Very busy place?
(Implement plan Darius?) - It could mean that, Madhulk, but without more information it's hard to say for certain. It's obvious that the words you have posted are talking about a stage where new artists will perform and that this stage is in a "joint" (usually a place where alcohol is served). So, does very busy joint mean Very busy place? - absolutely. Does hitting the stage to a plan D mean Implement plan Darius? - it's hard to say without more info.

Hope this helps,

Thank you, JohnParis!