OSCAR PERFORMANCES: Watch Lady Gaga’s ‘Sound Of Music’ Tribute, Tim McGraw + John Legend Are Night’s Best [VIDEOS]

The Academy Awards are film's biggest night but, some of the performances that stole the show at Sunday night's Oscars were all musical acts.

Tim McGraw brought the theater to tears covering Glen Campbell's emotional, nominated song 'I'm Not Gonna Miss You'.

Watch Lady Gaga's highly anticipated 'Sound of Music' tribute in which Julie Andrews was on hand to watch.

John Legend + Common bring down the house with their performance of 'Glory'.