Which cruise line ?
Princess or Royal Caribbean by chance.
If it’s one of these we have seen her, and she is very good.
She outperforms and outsings the other leads.
True story: One of her entertainment directors thinks he's a singer, and he can barely carry a tune. He wants her to invite him on stage to sing with her, but she will not do it, so he's been badmouthing her all over the ship and writing up bad reports to the powers-that-be, saying she is a terrible singer and giving her general low marks.
She confronted him about it recently. She set up an appointment and went in to ask him why he hated her so much. When she walked in he was listening to a song over his office speakers from a live concert performance of a male instrumental artist featuring a female lead vocalist. She asked him "Do you like that singer?"
He said, "yes, I love this singer...she's one of the greatest singers I've ever heard and I listen to this recording every chance I get, but I don't know who the singer is."
She said, "That's me."
It was! The guy hasn't had much to say to her since.