Wolfgang Puck said he mistook Ariana Grande for a student before she asked him to go to a karaoke bar with her

• Wolfgang Puck said he didn't know who Ariana Grande was when she showed up to eat at his restaurant.
• He said he thought she was a student and questioned whether she was old enough to drink alcohol.
• A waiter told him she was Ariana Grande and that she wanted to take him to a karaoke bar.

Celebrity chef Wolfgang Puck met Ariana Grande for the first time the week of June 7 when she went to dine at his restaurant inside Hotel Bel-Air.

While promoting his upcoming Disney+ documentary, "Wolfgang," the chef told Insider in an interview that he thought Grande and her friends, including her husband Dalton Gomez, were school-aged diners who were celebrating a day off from class.

"You know, every day I make new memories," Puck told Insider. "The last one was last week. There was a table of young people - girls and boys and everybody - and I talked to them; I thought that maybe they were in school or in college or whatever."

Puck said he made a comment along the lines of, "Oh, no school today, you are all out celebrating," and he even asked them if they had IDs, as he thought they looked too young to legally consume alcohol. "They were drinking, too!" he added.

The chef said that when he walked away, a waiter ran after him, telling Puck that those same diners wanted a photo with him.

"I said OK," he told Insider. "So I go back - you know, I'm always polite, people like a picture - and then they said, 'Oh, this is Ariana Grande, she wants to take you to a karaoke place and sing!' I said, 'Well, I think I'd take her in the kitchen and teach her how to cook probably before [I'd do karaoke].'"

Grande isn't even close to the first celebrity that's been to one of the famed chef's restaurants, though. Viewers of the upcoming documentary, which starts streaming on Friday, will get a look into the early days of his Los Angeles restaurant, Spago, and how it became a popular spot for famous people.