Lin-Manuel Miranda and Billy Porter were among those who called for better representation in a new commercial

The stars each alternated lines from a script, which included: "We appreciate the dialogue. We see the effort from Hollywood but we need more. We are here. We've been here".

'Mary Poppins Returns' actor Lin-Manuel asked: "Do you see me in this industry?"

Billy said: "We are more than a splash of colour on your white canvas."

And Isis said: "We're not your quota,."

The group argued diverse stars should not be seen as a "quota" but instead considered "quotable".

They also asked: "Would you rather breathe life into stereotypes or stand up against them? Because what I know of my culture isn't who you portray me to be.

"We're not your quota. We are quotable. So show me -- me. Not your me. Me."

The PSA - which was created by the Alliance for Inclusive and Multicultural Marketing (AIMM) - concluded that it was "time" to unite to create change.

It said: "Let's come together so we can create waves of change. It's time, see all."

Model Isis shared a clip from the advert on her Twitter page and insisted there is still "more work to be done" in tackling the lack of diversity in showbiz.

She wrote: "The Emmys should be applauded for the 33% increase in black nominees this year; but there's much more work to be done. It's time for the entertainment industry to have more diverse and fair cultural representation in programming, advertising and recognition."