Rebel Wilson has been called "rude" and "demanding" by crew who worked with her on the production of The Little Mermaid live show.
The Aussie actress, who played sea witch Ursula in the show, was allegedly a "huge diva" who liked to "shout at people".
"Everyone was hoping she would be super funny and sweet, but she shouted at people, rolled her eyes and insisted on getting more attention than anyone else.," the source told OK! USA.
"At one point she was even heard calling someone out for being "plain stupid."'
The Pitch Perfect star was joined onstage by other Hollywood stars who covered different songs from the Disney flick.
Rebel (Ursula), John Stamos (Chef Louie), Tituss Burgess (Sebastian), and Sara Bareilles (Ariel) were accompanied by a full, live orchestra onstage.