Taylor Swift Hosted a NYE Costume Party and Blake Lively, Ryan Reynolds, and Gigi Hadid Were All There

There was a time, not too long ago, when every holiday was marked by an epic party, hosted by Taylor Swift (opens in new tab). The singer was probably best known for her over-the-top Fourth of July parties (opens in new tab) on her Rhode Island estate, but she was down to have a crew of famous friends (opens in new tab) over for just about any occasion, especially if baking and/or themed outfits were involved.

After taking a big step back from the public eye for the last few years, purging her Instagram account (opens in new tab), and almost exclusively posting professional, promotional stuff (with the occasional cat lady picture or birthday shoutout (opens in new tab) mixed in), Taylor is back (opens in new tab) to hosting her famous friends. Or, at very least, she's back to inviting the rest of us to take a peek inside those parties.

Last night, Taylor hosted a very Taylor-y New Year's Eve bash (opens in new tab) with the theme "dress like your childhood hero." In attendance was what can only be described as a gaggle of celebrities, including Blake Lively (opens in new tab) (as Dorothy Gale from The Wizard of Oz), Gigi Hadid (opens in new tab) (as Mary Poppins (opens in new tab)), and Ryan Reynolds (opens in new tab) (as Ryan Reynolds in a grey suit and undone red tie, it appears). Taylor dressed as Ariel from  (opens in new tab)The Little Mermaid (opens in new tab), complete with red wig and crab purse.

"Mary Poppins, Audrey, Ariel, Ms. Frizzle, Cinderella, Gwen, Mr. Toad, Avril, Nancy Drew, Posh Spice, Rizzo, Frida Kahlo, Steve Irwin, Dorothy.. This new year we decided to dress up as our childhood heroes. Sending you all love and hope going into 2019 💗," she wrote (opens in new tab) by way of a caption in a series of pictures highlighting her party guests' amazing ensembles.

Scroll through the entire set for a picture of Taylor and Ryan chugging his signature Aviation Gin (opens in new tab) straight from the bottle.