Watch the trailer for Taylor Swift: The 1989 World Tour above.

Taylor Swift—she of sold-out world tours, #squalgoals, common phrase copyrighting, and "obnoxious Nazi Barbie" stuff, according to one feminist critic—turns the big 26 today! This means, of course, that the world has now enjoyed an entire decade of Taylor Swift music, as she made her official debut with Taylor Swift when she was just 16 years old.

In commemoration, Taylor posted a throwback photo to Instagram on Sunday morning (December 13) featuring her super-blonde little childhood self wearing an early 90s Little Mermaid jumper (so many pastels!) while making her now-signature surprised face. The caption? "Today I begin my 26th year of freaking out over stuff."

Sounds about right.

To help her celebrate the big day, a handful of celebrity pals and official "Bad Blood" squad members alike have taken to social media to send their best wishes Swift's way, particularly on Instagram, where famous friends like fellow pop star Selena Gomez, model Gigi Hadid, and actress Jaime King posted personal birthday messages.

As a special surprise for her fans, Taylor also announced on Instagram that a special documentary featuring footage and special moments (read: a million celebrity guest appearances) from her massive world tour this year will be released on Apple Music on December 20. Called The 1989 World Tour Live, the film was directed by Jonas Akerlund and will be available to stream for all Apple Music users. Take a look at the trailer for the concert special up top.

Tay-Tay officially wrapped her 72-show world tour—which began in Tokyo back in May—on Saturday December 12 in Melbourne, a day before her birthday. Seemingly, it was an emotional send-off for the pop powerhouse, and likely a perfect ending to being 25.

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