The April 23 special includes a Sound of Music-themed “Crosswalk: The Musical" with Janney and her Mom co-star Anna Farris, plus Kunal Nayyar and Young Sheldon's Ian Armitage.
TOPICS: Carpool Karaoke, CBS, Allison Janney, Christina Aguilera, Iain Armitage, James Corden, Kunal Nayyar