After weeks of teasing, Taylor Swift has returned with a new single and a fresh color palette ahead of what would be her seventh studio album.

“Me!,” a bubbly pop song by the 29-year-old singer and songwriter, featuring the vocalist Brendon Urie of Panic! at the Disco, had its premiere on streaming services and as a music video on YouTube at midnight on Friday, following a 13-day countdown — the singer’s lucky number — and an array of other clues and Easter eggs aimed at the devoted fans known as Swifties.