Next on ‘How I Met Your Mother’: Last Cigarette Ever

Acting veteran and playwright Harvey Fierstein (Hairspray, Torch Song Trilogy) guest stars on the brand-new December 14 episode of the CBS sitcom How I Met Your Mother called “Last Cigarette Ever.”

But he doesn’t play an actual character. Instead, he provides the voice for what Lily sounds like when she’s smoking, and if you’ve heard Fierstein’s distinctive voice, you know how surreal that’s gonna be.

The episode follows the gang as the members do their darnedest to stop smoking. Meanwhile, Robin finds herself at odds with a new colleague at work, who doesn’t have the best outlook on life.

Check out the promo for “Last Cigarette Ever” below.

How I Met Your Mother airs Mondays on CBS at 8pm ET.