Hey Stephen, Taylor Swift is on the late show and she has some advice for whatever comes next.

The superstar served as the only guest for the Dec. 10 episode of "The Late Show with Stephen Colbert," her first-ever in-person sit-down with the host.

Colbert introduced her with a flourish: "Ladies and gentlemen, my guest tonight is a 14-time Grammy Award-winning global superstar. You know her because everyone does."

Swift walked out in a burgundy off-the-shoulder velvet David Koma dress, her hair swept up with soft bangs and her signature red lip. She waved to the crowd and mouthed "Whoa" as the crowd's decibels peaked.

From the top, the tone was affectionate and a little starstruck. Colbert compared her entrance to the Beatles' 1964 arrival at the Ed Sullivan Theater. Swift deflected his praise with warmth and a little self-deprecation, telling him, "I think they had a whole thing going… but you've been so supportive over the years… I'm so glad to be here."