It was the grand finale of the farewell season of "American Idol" and "Extra's" Terri Seymour was on the red carpet catching up with singer Carrie Underwood, who won season 4 of the show. Carrie explained why she's feeling nostalgic, and shared her desire to catch up with Bo Bice, who was the runner-up during her season. The singer also opened up about how much her life has been shaped by winning the show.