"Invisible String" (stylized in all lowercase) is a song recorded by American singer-songwriter Taylor Swift. It is the eleventh track on her eighth studio album, Folklore, which was released on July 24, 2020 through Republic Records. Swift wrote the song with its producer Aaron Dessner. As the title suggests, the song centers on an invisible "thread of gold" that connects two soulmates and ushers them together in life, alluding to the Asian folk myth called the red thread of fate. It is an airy folk and country folk tune set to plucked strums of rubber-bridge guitar, fingerpicked acoustics, and back beats.
Its lyrics depict Swift's perspective of fate and destiny, using specific details that entwine select moments from her life and her lover's, the twists and turns that led the two former strangers to find each other, and narrates the pursuit of emotional healing and happiness through time. The song was well received by music critics, who admired its "lovely" instrumentation and innovative lyricism. It has been noted for being the only song on Folklore free of melancholia. NPR named it one of the best songs of 2020. "Invisible String" entered the top 20 on the Australian and Singaporean singles charts, and the top 40 on the Canadian Hot 100 and U.S. Billboard Hot 100.