Singer/actor Tim Mcgraw was literally left holding the baby during downtime from shooting COUNTRY STRONG - because his wife Faith Hill would spend her evenings out with his movie co-star Gwyneth Paltrow.
The country star plays Paltrow's husband in the new drama, set in Nashville, Tennessee, and their two families grew close after spending time off set together.
But MCGraw was the one left at home to look after their three kids when it was time to party - because Hill was too busy bonding with Paltrow.
He tells People.com, "I babysat the whole time. 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."
Paltrow recently admitted her son Moses, four, had become smitten with MCGraw and Hill's nine-year-old daughter Audrey.
During an interview with Hill for InStyle magazine, she said, "Moses... we might really become family when he marries Audrey! My son is in love with your daughter!"
MCGraw admits he's not opposed to the idea of a future celebrity wedding - but he has one stipulation for Paltrow's son with her rocker husband Chris Martin.
He laughs, "That's what I hear. That's what I hear. Well, he better make a lot of money!"