Cameron Diaz, Gwyneth Paltrow, Ben Affleck and more! See the seemingly ageless A-listers celebrating 40th birthdays this year
Idris Elba (September 6)
'Sup String? The sexy former Wire actor looks as though he's barely aged since his days playing Baltimore drug lord Russell "Stringer" Bell on the HBO hit.
Credit: Jim Spellman/WireImage, Joe Kohen/Getty Images