The new episode will be broadcast at 8 PM ET; check local listings.
鈥淎fter getting into an argument, Marge takes Lisa on a touristy trip to Capital City, where, after attending a musical, they meet the show鈥檚 star, Andrew Rannells (guest-voicing as himself), who reminds Lisa how lucky she is to have such a great mom," according to press notes. "Meanwhile, Bart is frustrated that everyone expects his pranks, so he teams up with Maggie to trick people.鈥�
The voice cast includes Dan Castellaneta as Homer Simpson; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson and Nelson; Yeardley Smith as Lisa Simpson; Hank Azaria as Moe; Harry Shearer as Skinner; Tress MacNeille as Dolph; and Pamela Hayden as Milhouse.
Rannells, who can also be seen on HBO's Girls, was Tony-nominated for his performance in The Book of Mormon.
I can't believe this is real, but it's true! Sunday night on I'll be playing myself! 4/10 8/7pm Crazy!
鈥� Andrew Rannells (@AndrewRannells)