Joseph Gordon-Levitt looked sharp in a suit when he arrived at the Oscars tonight in LA. He isn't nominated for any awards, but he will be performing a number with Daniel Radcliffe and Seth MacFarlane. Joseph didn't reveal too much about his performance, only noting that he was going to be doing something with Daniel and Seth during the opening number. However, he did squeeze in some fun on the red carpet when he posed for photos and did interviews with Sally Field. Be sure to weigh in on the top red-carpet looks in our Oscars fashion and beauty polls.