Oscar winner Reese Witherspoon croaked her way through a TV interview with Oprah Winfrey yesterday (06MAR06) because she was all partied out following her Academy Awards success. The Best Actress winner was the first guest on Winfrey's annual post-Oscars show and confessed she hadn't thought to take care of her voice as she celebrated her victory. She told Winfrey, "I just kind of floated through. I didn't get home until three o'clock in the morning." Witherspoon told Oprah that her Oscar night was completed by a call she received as she was preparing to leave for the ceremony from pal and previous Academy Award winner Renee Zellweger. He explained, "She was so lovely and so beautiful and gave me so much. She told me to keep my shoulders back, stand up straight and if I have to go up there, to give it my all and 'just be the queen that you are, honey'. "She's just a wonderful Southern love. It really means so much to be embraced by other artists."