Julie Andrews says Lady Gaga called for approval before Oscars medley

Julie Andrews has revealed that Lady Gaga called to get her approval before singing a Sound of Music medley.

The singer performed a selection of tunes from the classic movie at this year's Oscars ceremony.

Speaking to People, Andrews - who starred as Maria in the 1965 flick - said that Gaga wanted her permission to perform the medley.

The actress said: "She called me about 10 days before and she said, 'I just want to talk to you and make sure I don't offend. That what I'm doing is okay with you'. It was very generous of her.

"She said she'd been working so hard and she was singing everything in my keys. I said, 'Why? They're very high, even for me'. And she said, 'Because I wanted to honour you, so I did them in your keys.' That seemed like going one step beyond any place she needed to go'."

Speaking about the performance, Andrews added: "She hit it out of the ballpark. And then she was gracious enough to hand it to me. So that's a really wonderful thing to do too I think.

"As they say in Hollywood jargon, 'She rates tall in my book'."

Watch Gaga's medley below: