CELEBRITY BIRTHDAYS (3/11/11): Terrence Howard - 42   He's starred in "Iron Man", "Ray", "Crash", and  "Hustle & Flow" ...

--Johnny Knoxville - 40  "Jackass" or jackass. Depending on how you feel about him ...

--Benji and Joel Madden - 32   Identical twin "Good Charlotte" rockers.  Joel has two kids with Nicole Richie, and Benji was gettin' all smoove up in Paris Hilton for a while ...

--Lisa Loeb - 43   Chicks in glasses are HOT ...