"How many sopranos does it take to change a lightbulb?"
"I don't know how many?"
"Six: one to change the lightbulb -- and five others to say that it really was a bit high for her!"
And here's another...
"How do you know when there's a soprano trying to open the door?"I was also rather keen on the following joke which will be applauded by any and every performer (not to mention artist and writer) who has ever employed an agent...
"She's always coming in late and she can never find the right key!"
"How many agents does it take to change a lightbulb?"Thanks, Tina...
"Go on, how many?"
"None... If it's not working, they're not interested!"