T-Wayne is back at it. While promoting his Happy Hour: The Greatest Hits LP on Sway in the Morning T-Pain dropped the new single 'Let Me Through,' featuring his old buddy Weezy. Listen to the radio rip:

The beat is sparse, highlighting the duo's lyrical dexterity. No Auto-Tune for T-Pain, but he's rapping, not singing, here. Lil Wayne has been on fire lately, dropping guest verses on song after song. Does this bode well for Tha Carter 5 Part One, which hits December 9?

As for T-Pain, his recent singing display has cast him in a new light. The King of Auto-Tune may well be one of the finer all-around musicians in the game.