Julie Andrews
The Tony Award-winning stage and screen star introduced the world to the bittersweet standard-to-be Send in the Clowns by Stephen Sondheim.
Russell Crowe and Anne Hathaway are among the other Hollywood figures who have honoured the Canadian actor online.
The Canadian was the oldest actor to win an Oscar – and is best known for playing Captain von Trapp opposite Julie Andrews.
The Netflix series has been a huge hit since arriving on Christmas Day.
Just how "practically perfect" is the new film?
But you'll have to wait until Christmas for the full thing.
She's more than happy for Emily to carry the umbrella from here on in.
'I felt the wire drop about six inches... I plummeted to the stage.'
We're excited to see how his cockney accent has come along in the past 50 years.