North West roasted Kim Kardashian's designer over his pearl Met Gala look. He said it was his 'worst nightmare' when the 9-year-old called it 'Dollar Store.'

• North West roasted Kim Kardashian's designer in a newly aired clip.
• North critiqued Schiaparelli's Daniel Roseberry, who made her mother's pearl gown for the Met Gala.

Kim Kardashian's designer said he was living his "worst nightmare" when 9-year-old North West verbally tore apart the design he made for this year's Met Gala.

"It looks like she's a Hawaiian girl with her dress all ripped," North said to the Schiaparelli creative director, Daniel Roseberry, in a clip that aired Wednesday on "The Kardashians."

In the clip, North was sitting with Kardashian and Roseberry hours before the event, discussing the custom-made pearl Schiaparelli gown that Kardashian would be wearing.

North scoffed at the look. Kardashian reminded her daughter that she was "very positive" when she first saw the dress. North retorted that the pearls looked fake, adding: "I like the pearls. I just don't like that it looks like from the Dollar Store."

Roseberry — visibly mortified as he chugged water — said: "It's like I'm being 'Punk'd' the night before the Met," he said in the clip. "Getting read for filth by a nine-year-old."

Fans loved North's commentary. "I'd watch an entire season of just North West roasting her mother," the X user @stefestilo said.

"North West is the definition of brutally honest," the X user Jules Terpak said.

Despite North's feelings about the dress, she still helped pick up the loose pearls that fell from the gown.