Michael J. Fox Tells Taylor Swift to ‘Back Off’ His Son

One of Tina Fey’s best one-liners from the Golden Globes was when she told Taylor Swift to “stay away from Michael J. Fox’s son.”

Curious what Michael J. Fox thought of the joke? At a book party Wednesday night for Ann Leary’s “The Good House,” the good people over at Vulture actually approached Fox to see if he would approve of Taylor dating his son Sam, 23.

"No. No ... Just back off," Fox said. "I don’t keep up with it all. But Taylor Swift writes songs about everybody she goes out with, right?"

“Right,” they replied.

"What a way to build a career,” Fox said.

The interviewer then asked Fox how he would react if Swift showed up to a Fox family dinner.

"I wouldn’t even know who she was," he said, before agreeing it would dawn on him when the eventual breakup song hit the radio. "'Sam, You Piece of S--t.' Oh … that was the girl you brought home!"

No word yet on how Swift feels about the running joke. Maybe Fox and Fey could end up joining Harry Styles as subject matter for her upcoming album?!

More Celebrity Features on Yahoo!:

Follow @YahooOMG on Twitter