I've never seem the late Pickett--who died from leukemia on Wednesday, April 25, 2007 in L.A. (and as it happened was nine days after the Virginia Tech massacre)--perform this onstage, so maybe this vid is new as well (to those herein interested).
To me this sounds identical to the released 1962 single, so I guess it's lip-synched. I would think trying to lip-synch a talkin' vocal like this is WAY more difficult than a song that's sung, and it's also an impression--two, actually-- which strikes me as even MORE difficult to synch. But it sure seems seamless.
And who's the Bandstand regular under the rubber mask whom Clark is chatting up?
BRYAN STYBLE/Florida
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https://www.youtube.com/watch?v=vNuVifA7DSU