1:42 little grey cells. 2:54 Homage to David Suchet's portrayal of Hercule Poirot 5:09 Hercule Poirot and His Little Grey Cells - Vintage Style Song (Lyrics] 2:19 Original Song : \"Little Grey Cells (Hercule Poirot)\" 1:03 Poirot's little grey Cells 7:10 Agatha Christie's Poirot (1989) Cast THEN and NOW, All Actors Are Aging Horribly! 5:04 Why Does Hair Turn Gray? 5:18 Poirot at theatres 3:44 🌟SPECIAL🌟 genius-level intelligence and perfect brain structure 1:34 little grey cells 5:22 Agatha Christie: Book Haul 0:47 Poirot is an Amazing Detective - Agatha Christie The ABC Murders