Looks like everybody is doing Rae Sremmurd's mannequin challenge...  Even the crew from Sesame Street!

Yep, Big Bird, Cookie Monster, Grover, and even Snufalupic- (I give up!  But, you know who I mean) are doing the mannequin challenge.  Actually, this is probably the most well planned out mannequin challenge I've seen yet!

check it out:

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