Jennifer Hudson was the best part of the Oscar's tribute to musical movies, singing her "Dreamgirls" showstopper "And I Am Telling You I'm Not Going" — the film earned her an Academy Award in 2007.
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
