Leave it to Taylor Swift to throw one of the most epic birthday parties we've ever seen. The pop superstar, who turned 25 on Dec. 13, threw a simple yet star-studded bash at her New York City loft.

The entire affair can be summed up in a single shot that the "Shake it Off" singer shared on her Instagram channel with the caption, "So this is being 25..... #WHAT #bestbirthdayEVER."

Wearing a tartan crop top and matching high-waisted trousers, Taylor can be seen posing alongside Sam Smith, Jay Z, Beyoncé, HAIM, Karlie Kloss and Justin Timberlake (who happened to dress up as a poop emoji). Talk about an A-list affair!

Read more: Taylor Swift like you’ve never seen her before on the cover of ‘Wonderland’

Other snaps from the fête show the birthday girl blowing out cake candles with Jamie King and Selena Gomez, the latter of which had a "S" for Selena and "T" for Taylor painted on her nails in honour of the duo's friendship.

If this is how Taylor celebrates 25, we can't wait to see what she does for her 30th!

Get the retro-glam Taylor Swift look: