If Lady Gaga’s performing onstage, you better listen. And if you don’t, she’ll stop singing.

When a loud crowd still chatted at the Plaza Hotel where Gaga was performing jazz tunes on Friday, she stopped in the middle of her second song because of the noise.

“Will you (expletive) shut up? We’re playing some jazz,” she told the New York City crowd of a few hundred.

“Goddamn rich people.”

Gaga sang at the New York Fashion Week party by Harper’s Bazaar, where attendees included Donatella Versace, Liberty Ross, Brook Shields, Maxwell and Miguel.

She sang songs from her upcoming collaborative jazz album with Tony Bennett.

She dedicated a cover of Cole Porter’s Ev’ry Time We Say Goodbye to her family and boyfriend, Chicago Fire actor Taylor Kinney.