During a recent interview, actor Will Smith revealed a sneaky ploy his son employed while on a recent trip to England.

"He has a show coming out called 'The Get Down' so he was promoting in London,” Smith told Jimmy Fallon on "The Tonight Show." "So he was like, 'Guys, you know, it's before my birthday, I'll be promoting in London, everybody should come to London and we'll just celebrate my birthday there."

Smith said he thought it was a nice gesture.

But Jaden Smith, who celebrated his 18th birthday on July 8, had other intentions.

"And then we go to a restaurant and, you know, Jaden was just particularly excited," Will Smith said. "We sit down at the restaurant and he looked at the waiter and he says, 'I'll have a tequila.'"

The legal drinking age in the country is 18.

Will Smith said he was surprised, but he thought quickly.

"I was thinking fast. I said, 'Oh, but whoa, whoa, hold on. It's only noon in L.A. and you weren't born till 4, so you're not 18 yet!'"