Lady Gaga performed for the first time at the Oscars on Sunday in a special 50th anniversary tribute to "The Sound of Music ." The Robert Wise film, starring Julie Andrews and Christopher Plummer, came out in 1965 and won five Academy Awards.

The pop singer changed out of her giant red gloves to sing a medley of songs including "The Hills Are Alive," "My Favorite Things," "Edelweiss" and "Climb Ev'ry Mountain." After her performance, Andrews came on stage to thank Gaga. "It really warmed my heart, it really did," Andrews said before presenting the next award, for Best Original Score.

Gaga, who was recently engaged to actor Taylor Kinney , announced that she'd be performing at this year's ceremony on Twitter . Earlier this month, Gaga also performed at the Grammys Grammys alongside Tony Bennett.

Last year, Pink performed "Somewhere Over the Rainbow " in a special Oscars tribute for the 75th anniversary of "The Wizard of Oz."