Keira Knightley and Lady Gaga at the Oscars 2015 This image appears in the gallery:Oscars 2015 red carpet pictures: Eddie Redmayne, Rosamund Pike, Hans Zimmer and a galaxy of stars 14. Keira Knightley and Lady Gaga at the Oscars 2015 Keira Knightley poses with Lady Gaga at the Oscars 2015. 38 images See the full gallery: Oscars 2015 red carpet pictures: Eddie Redmayne, Rosamund Pike, Hans Zimmer and a galaxy of stars