Whether you know him as Zach Sherwin or as his former alter-ego, MC Mr. Napkins, you’ll be impressed by the feat he pulls off here in this performance on FX’s Totally Biased with W. Kamau Bell.

For “Grit & Grin,” Sherwin raps the lyrics while doing just that. Grinning. With grit.

Enjoy! That’s Joshua Silverstein providing the beatbox backing.

Roll the clip.