Duke Nukem voice actor Jon St. John has teased plans for some interesting sounding DNF post-release DLC.
Speaking to VoicetheDream, he revealed he's done around "seven or eight sessions for Duke Nukem Forever" and has "some still to go".
He went on to talk about additional content with new features, perhaps including singing.
"Even though the game is still finished, of course there will be special add-on packs and features including... I don't know if I am allowed to talk about this or not... something that may involve singing. I'll leave it at that."
Duke Nukem Forever releases in the UK on June 10, with a demo due on Xbox 360, PS3 and PC on June 3.