Kathy Griffin IS Justin Bieber on 'Jimmy Kimmel Live' (VIDEO) 

... was the guest -- and she took dead aim at Justin Bieber. Or maybe it was an adoring tribute to the young singer; it was a little hard to tell. Kathy showed host Jimmy Kimmel a "trailer" for her new "movie." And Kathy's trailer bore a suspicious similarity to the upcoming film 'Never Say ... Kathy Griffin IS Justin Bieber on 'Jimmy Kimmel Live' (VIDEO)