Today's celebrity birthdays: Wed., May 11Comedian Mort Sahl, 89Actress Shohreh Aghdashloo ("24"), 64Actor Boyd Gaines, 63Drummer Mark Herndon of Alabama, 61Former MTV VJ Martha Quinn, 57Country singer Tim Raybon of the Raybon Brothers, 53Actor Tim Blake Nelson ("Lincoln," "O Brother, Where Art Thou?"), 52Bassist Keith West of Heartland, 48Actor Nicky Katt ("Boston Public"), 46Actor Coby Bell ("Third Watch"), 41Cellist Perttu Kivilaakso of Apocalyptica, 38Actor Jonathan Jackson ("Nashville," "Tuck Everlasting"), 34Rapper Ace Hood, 28Musician Howard Lawrence of Disclosure, 22