Couric was a special correspondent for ABC News , based in New York , a role she has incorporated into her talk show . Her first appearance on the network was a Sarah Jessica Parker interview on '' Nightline '' . Couric co-anchored coverage of the 10th anniversary of the September 11 attacks , alongside Diane Sawyer , Christiane Amanpour , Barbara Walters , Elizabeth Vargas , George Stephanopoulos , and Robin Roberts . Couric was hosting '' Today '' on '' NBC '' at the time of the attacks , and led CBS News 's coverage of the 5th anniversary . Couric also guest co-hosted '' The View '' and '' Live ! with Regis and Kelly '' . Couric interviewed Lady Gaga in primetime on Thanksgiving as part of '' A Very Gaga Thanksgiving '' . In November 2011 , Couric hosted a special primetime ABC news program highlighting Regis Philbin 's retirement , after Philbin 's 25-year tenure at ABC
September 11 attacks
September 11 attacks
Katie Couric