Twenty years after "Tim McGraw" introduced Taylor Swift to country radio, the singer is sounding country again — and perhaps preparing for another run on country radio.

After a dramatic rollout, Taylor Swift 's new original song for "Toy Story 5" has officially arrived.

Swift doesn’t sing with a familiar twang on “I Knew It, I Knew You,” but no matter — the song features some elements inextricable from the country genre: Live instrumentation, plucky banjo and harmoni...