Michelle Obama was the biggest (and possibly only) surprise of the night, appearing via satellite from the White House to introduce the nominees for Best Motion Picture before opening the winning envelope and crowning "Argo" as champ.
Oscars 2013: The 10 Best Moments, From Shirley Bassey to Michelle Obama (Photos)
Shirley Bassey sung her classic Bond "Goldfinger" theme, Barbra Streisand honored Marvin Hamlisch with his Oscar-winning "The Way We Were" and Michelle Obama turned out to be the biggest surprise of the evening
