Could a revamped female empowerment anthem from Dolly Parton and “Mr. Worldwide” himself be the collaboration country fans never knew they needed? In mid-February, Pitbull quietly put out a song called “Powerful Women,” an uptempo but emotional salute to everything his working-class mother accomplished when he was a child. There’s something awfully familiar about the track, though: That’s right, it samples Parton’s iconic 1980 working woman’s anthem, “9 to 5.” But the twists and turns don’t stop there. “Powerful Women” includes Parton singing the chorus of “9 to 5,” and it sounds like a fresh …