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Neil Patrick Harris Tweeted: 'Donna Summer passed away today. Same day as Jim Henson, 22 years ago.
He then posted a link of a Muppets parody YouTube video that shows Beaker appearing to sing Summer's 1979 disco hit 'Hot Stuff.'
(Pictured: Neil Patrick Harris speaks after his star ceremony on the Hollywood Walk of Fame on Sept. 15, 2011.)
(Hollywood Chamber of Commerce)