'Spongebob Squarepants' Channels 'Mad Men' for Jon Hamm's Guest Spot: Watch Video:

Jon Hamm plays Don Grouper in the all-new special, 'Goodbye, Krabby Patty?' It premieres Monday, Feb. 20 on Nickelodeon at 7 p.m. ET.

Published Mon, 30 Jan 2017 19:51:00 UTC

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