Taylor Swift threw the most epic New Year's Eve costume party and the pictures are everything

Along with a penchant for dissecting her past relationships in her music, Taylor Swift is also known for hosting some absolutely amazing parties - chock full, of course, with the full array of her star-studded "squad".

Taylor and the likes of Gigi Hadid, Blake Lively and Ryan Reynolds dressed up as their "childhood heroes" to ring in the new year, as the 29-year-old revealed on Instagram.

And as you could expect, the pictures are just amazing. Take a gander below...

1. Gigi Hadid dressed as Mary Poppins

Credit: Instagram / Gigi Hadid

2. Blake Lively came as Dorothy from The Wizard of Oz 

Credit: Instagram / Taylor Swift

3. Ryan Reynolds was dressed as... himself? 

Credit: Instagram / Taylor Swift

4. Taylor's best friend, Abigail, came dressed as Posh Spice

Credit: Instagram / Taylor Swift

5. Fashion stylist, Ashley Avignone, came as Gwen Stefani 

Credit: Instagram / Gigi Hadid

6. Iris Apatow - daughter of Judd Apatow and Leslie Man - was Cinderella 

Credit: Instagram

7. And of course, Taylor came dressed as Ariel from The Little Mermaid 

Credit: Instagram / Taylor Swift

8. And here's an unrelated but adorable shot of Taylor's cat, Meredith

Credit: Instagram / Abigail_Lauren

Thanks for making our new year's celebrations look lame in comparison, Taylor!