Will Smith beefed up for his upcoming role in Focus, but it was his wife that provided the motivation.

Jada Pinkett Smith has a lot of hot men on set with her for Magic Mike XXL, which meant Will had to step up to the plate.

He spoke to ET about how his wife influenced him to get into shape, "You got to be a lot of man to handle a lot of woman like that. So I felt really confident when she was going into that set, into that situation," he said. "I just had to make sure she had some beefcake at home too."

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Will, 46, plays a con man who becomes romantically involved with a young woman, played by Margot Robbie.

When Will first took on the film, the fact that he was twice Margot's age played a factor into getting that toned body. "Jada kept saying boy that girl is 23, do not go on that set out of shape," he said.

And it's not just Jada's judgment that Will trusts. He told ET that he trusts his kids' judgments. "I trust their decisions and I trust their ability to find help when they need it," he explained.

Will's 16-year-old son Jaden talked to New York Magazine in May of 2013 and spoke glowingly of his dad. "He's like, really just cool. He lets us have our freedom as long as we can control our freedom," Jaden said.

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Jaden's sister, Willow, 14, exercised her freedom online by recently posting a "topless" Instagram photo and then deleting it. The nude "image" was on her sweater and she didn't actually show any skin, but this wasn't her first controversial snap.

Last May, Willow was with Hannah Montana's Moises Arias in a photo that showed him shirtless and her lying down on a bed with him. Moises deleted the Instagram soon after too.

In spite of all of the controversy, Will assured ET about his kids, "I trust they'll find their way."

Focuswill be released in theaters on Feb. 27.

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