Kaley Cuoco just dropped Instagram's jaw. The "Big Bang Theory" alum kept it girl-next-door for a gorgeous update on Tuesday, with the 34-year-old proving just why the world fell in love with her all those years ago. Kaley, followed by 6.2 million and currently gearing up for upcoming TV series "The Flight Attendant," wore the most ordinary outfit known to man. One pair of casual jeans, one plain white tee, and she even opted out of shoes or socks. Check it out below.