Whether it's on or off screen, Scarlett Johansson always knows how to capture our attention. When the 35-year-old actress isn't kicking butt in the Avengers movies, she's working it on the red carpet. Over the years, Scarlett has served some seriously sexy looks as she strikes a pose. From her early years as a blond bombshell to her Black Widow days as a redhead, Scarlett certainly knows how to work the camera from all the right angles. See some of her best moments ahead!