Fallon posted a cryptic teaser revealing Swift’s appearance with a coded video and the caption, “Not a lot going on at the moment.”

Taylor Swift is returning to late night for an appearance on "The Tonight Show Starring Jimmy Fallon." How to watch.

See Jimmy Fallon bring laughs and celebrity fun when The Tonight Show airs weeknights at 11:35 p.m. ET/10:35 p.m. CT on NBC. New episodes are also available for next-day streaming with a Peacock subscription and can be accessed with a YouTube TV subscription as well.

Charlie Puth is opening up about becoming a father. He discussed his baby news when he stopped by "Tonight" on Wednesday to promote his new single "Changes."

Jimmy Fallon says he plans to keep his "head down" at "The Tonight Show" amid late-night drama and make fun of "both sides equally."

Taylor Swift, the 14-time Grammy-winning singer-songwriter, discusses her new release, “The Life of a Showgirl,” on “The Tonight Show Starring Jimmy Fallon” on Monday night. The new album was met with a huge reception,

Taylor Swift is set to visit 'The Tonight Show Starring Jimmy Fallon' just days after the release of her 12th studio album, 'The Life of a Showgirl.'