Ben Affleck's 'Argo' wins best-picture Oscar
85th Academy Awards – Insider Backstage
** EMBARGOED AT THE REQUEST OF THE ACADEMY OF MOTION PICTURE ARTS & SCIENCES FOR USE UPON CONCLUSION OF THE ACADEMY AWARDS TELECAST ** Jennifer Hudson performs at the Oscars at the Dolby Theatre on Sunday Feb. 24, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)