VIDEO Ben Platt Sings with Cookie Monster on the NOT-TOO-LATE SHOW

Ben Platt stops by The Not-Too-Late Show with Elmo to sing a duet with Cookie Monster to his favorite song, C is for Cookie!

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The Not-Too-Late Show with Elmo is a Sesame Street spinoff brings the whole family together for games, songs, and backstage antics with Elmo's celebrity guests.

New episodes of The Not-Too-Late Show with Elmo air every Thursday on HBO Max.