I think God wanted to do a show with Johnny Carson this week so he got some celebrities to guest star on it. Think about it:

"from the Big Gates of Heaven its the Tonight Show with Johnny Carson
with today's guests
from Charlie's Angels, FARRAH FAWCETT!
from Home Tv Shopping and Pitchmen, BILLY MAYS!
and a special musical performance from the King of Pop, MICHAEL JACKSON!!!
and I'm ED MCMAHON
and now
HEEEEERRRRRREEEEEEE's JOOOOOHHHNNNNYYYYYYYYYY!!!!!!"

Then I imagine they'd do a comedy skit with David Carandine right after the monologue.
Man, that's gonna be some show!
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RIP to all of the celebrities who died within the last month.