12/15/2010 12:51 pm ET Updated May 25, 2011

Tim McGraw Talks About Gwyneth Paltrow's Son Marrying His Daughter

Gwyneth Paltrow is gung ho on her son Moses, 4, marrying Faith Hill's daughter Audrey, 9 -- but Hill's husband is setting down a big rule before the wedding can take place.

"That's what I hear. That's what I hear. Well, he better make a lot of money!" Tim McGraw told People Magazine. And while he filmed 'Country Strong' with Paltrow, he got to know the burgeoning couple well, too.

"I babysat the whole time," he told the magazine. "Faith and Gwyneth went out and partied. I didn't get to go out. ... I was tired! So they went out. They had a good time."

At least things look promising, though: "The kids really had a great time, and we all had a lot in common."

Somehow, we think both children won't have to worry too much about money.