Rita Ora has revealed Jay Z is so strict he fines her if she turns up late to the recording studio.
The Hot Right Now singer is signed to the rapper's Roc Nation label and told NME magazine he is a stickler for punctuality.
Rita said: "I was late in the studio by 10 minutes and I got an email checking up on me. There's a fine if I'm late.
"I set that standard for myself, but now I'm regretting it.
"It's a small example of the way Jay is always on time and on point with his s***."
But the singer - who is dating Scottish DJ Calvin Harris - revealed her respect for the hip-hop star makes her want to do her best to impress him.
She added: "He doesn't try and make you do anything you don't want to do - he doesn't make you be on time - but he makes you realise you're only affecting yourself."