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03/13/2014 03:24 pm ET Updated Mar 18, 2014

Seth Rogen Lists With Whom He's Smoked Weed And With Whom He, Surprisingly, Hasn't

Seth Rogen was a guest on "Watch What Happens Live" Wednesday, March 12, and Andy Cohen put him on the spot, asking him to "out" his stoner friends.

Cohen quizzed Rogen with a list of celebrities the actor has worked with, has been associated with or are just plain known for smoking (read: Snoop Lion). Paul Rudd, for instance, has smoked with him many times, but you'll be very surprised who hasn't ...

Find out in the clip above.

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