Despite refusing to sing the song 'Man in the Iron Mask' for me personally (the song, from his first album, is a heart-melting ballad) Billy was on fine form throughout.

BBC: May 29

We became so friendly that Alan made me sing with the group during the chorus on one song, without advance warning.

NPR: Grada Makes Irish Music New

And so Dinah calls me onstage and I go out to sing the song and the band starts playing the intro, and the musical director forgot to tell them that I was doing it in a different key and so I stopped them.

NPR: Patti Austin, Singing Gershwin's Praises

And my producer, who was in the room - this was in 1970s - said to me, you've got to sing a song.

NPR: Judy Collins, From Both Sides Now