Taylor Swift won her first Grammy for what song?
Taylor Swift won her first Grammy for the song "White Horse" in 2010. The song won the award for Best Female Country Vocal Performance at the 52nd Annual Grammy Awards. "White Horse" was featured on Swift's second studio album, "Fearless," which was a commercial and critical success. The album helped to establish Swift as a major force in the music industry and paved the way for her future success.