Happy birthday, Taylor!

Taylor Swift Birthday
Taylor Swift performs during her '1989' World Tour at ANZ Stadium on November 28, 2015 in Sydney, Australia.
| Credit: Mark Metcalfe / Getty Images

A happiest of birthdays to the one and only Taylor Swift!

In honor of the pop princess's 27th birthday, we've rounded up 18 of her best Instagram moments. From too-cute throwbacks and glam red carpet appearances, to all the cat pics and adorable hilarity in between, scroll down to see our favorite T Swift moments from over the years.

1. This cute throwback taken while recording her first album 10 years ago.

2. When her cat Meredith had enough.

3. The time she rocketed down a waterslide with her BFF Karlie Kloss on the Fourth of July.

5. When her mom's Great Dane tried to sit on her lap.

6. When she was the ultimate maid of honor for her childhood best friend.

8. When she transformed into the prettiest elf.

9. This throwback.

10. When she took a selfie with a real life kangaroo.

11. The time she made a feathered friend.

12. When her cat Olivia Benson chewed on her namesake's Moonman.

13. When she brought Idina Menzel on stage and she dressed as Olaf from Frozen.

14. When she discovered that sheep can be quite rude.

16. When she dressed as a Pegacorn for Halloween.

17. When she had a tiny jam session.

Happy birthday, Taylor!