The two stepped out for opening night of the new Broadway musical The Outsiders.
The 10-time Tony nominee was a true icon of the theatre world.
The stage actor was known for his roles in Mamma Mia! and Wicked.
The New York actor's death was confirmed by his sister, Roxy Hall.
The Killing Eve actor told audiences at Prima Facie she couldn't breathe, before stopping the play just 10 minutes in.
"I got quite a lot of flak for that," the Interstellar actor said.
The Phantom Of The Opera composer will miss the Broadway premiere of his new musical to be with family.
The actor shared a throwback photo in memory of her former boyfriend and Glee co-star, who died in 2013.
The actor goes full frontal in his Tony-nominated role, but strict mobile phone rules were supposed to stop overzealous audience members.
'I can’t wait to sink my musical teeth into this hunk of popular culture.'