Red ruled on the red carpet tonight at the 2011 Oscars as Hollywood's top celebs favored the eye-catching color for their formal dresses. Co-host Anne Hathway made a grand entrance wearing a curve-hugging fire engine strapless gown by Valentino. Jennifer Lawrence looked like the ultimate screen goddess in a slinky, slip of a formal dress by Calvin Klein. Sandra Bullock stood out in a crimson Vera Wang evening dress that was classy and classic. Jennifer Hudson, although technically not in a real red, came close in a stunning deep tangerine halter by Atelier Versace that showed off her fabulous curves.