The audience cheered so loudly during Jimmy Fallon's introduction of Taylor Swift, it felt like an Eras Tour in Studio 6B.

For three full segments, Fallon asked about her engagement to Kansas City Chiefs tight end Travis Kelce, speaking at Selena Gomez's wedding and the inspiration behind "Wood." And Swift answered the hard questions.

Before she came out, Fallon did a bedazzled tap dance with Bob Mackie-esque showgirls. After the show's intro rolled, his monologue was riddled with Swift jokes.

"This is the hottest ticket in town," he said. "Today I was on the phone with Pope Leo and said, 'I'm sorry your holiness there is no more room.' I just want to thank all the Swifites around the world watching us tonight."

The jokes kept flowing: "Even though it's October, like everyone else, I spent the weekend looking for Easter eggs. I listened to the album so many times this weekend. I think that I'm in love with Travis. ... 'The Life of a Showgirl' is full of Shakespeare references and math, at this point, Taylor is basically the Department of Education. ... Taylor broke multiple Spotify records. ... Shakespeare was like, 'I doth slayeth again.'"