Taylor Swift is single again, but her next boyfriend will not be Michael J. Fox's son, Sam. The Back To The Future star's son served as Mr. Golden Globe at the awards show this month. 30 Rock actress Tina Fey joked about a Taylor/Sam Fox hook up. After the show Michael J. Fox was asked about a potential love affair between his son and the songstress and he said, "No no, just back off."