The highly anticipated 2015 edition of the Victoria's Secret Fashion airs nationwide on December 8, but the filming for the show takes place November 10 in New York City. The show — which will be celebrating its 20th anniversary this year — will have 44 models strutting down the runway including high-profile catwalkers like Gigi Hadid and her bestie Kendall Jenner, along with veteran angels like Adriana Lima, Alessandra Ambrosio, and Lily Aldridge (who will be wearing the bejeweled Fantasy Bra).

We've always wondered what goes on behind the scenes in preparation for the show, and it looks like we won't have to anymore because Victoria's Secret recently released a video showing a sneak peek of what actually happens at the intense model castings.

We already knew it took a lot of hard work to land a spot on the runway for this show, but the process is actually a lot tougher and more nerve-racking than we imagined. Physically preparing is also a big part of this, and that's evident in the models' Instagram accounts. Their routines include everything from boxing, intense ab workouts, ballet, and Pilates to getting beautified and camera-ready with facials and manicures. It makes us want to hit up a fitness class and pamper ourselves afterward — check out how these beauties prep before the big day.

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1

Lily Aldrige

So proud of @harryjoshhair and his new 2n1 #harryjoshprotools iron ????????????

A photo posted by Lily Aldridge (@lilyaldridge) on

Veteran Angel Lily Aldridge — who will be wearing the 2015 Fireworks Fantasy Bra — has been working out twice a day to prep for the show. While there are no pictures of her fitness routine on IG, she did post a photo of her getting her hair done by famed hair guru Harry Josh. Looking good, girl!

2

Alessandra Ambrosio

The Brazilian bombshell posted a picture of herself training at the gym and showing off a post-workout glow. 

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3

Adriana Lima

Just finished my nails ???????????????? thank you @macokwsk you are an angel ????????

A photo posted by Adriana Lima (@adrianalima) on

Lima went hard at the gym the week before the show, but made sure to squeeze in time for a fresh manicure.

4

Gigi Hadid

good morning @gothamgym ⚡️⚡️

A video posted by Gigi Hadid (@gigihadid) on

The fashion model of the moment has been taking her new gig very seriously by becoming more dedicated to her workout regime. She's been boxing to keep herself in great shape, and it's clearly paying off.

5

Kendall Jenner

final touches at #VS fitting! excited for tomorrow ????????

A photo posted by Kendall Jenner (@kendalljenner) on

Hadid's BFF is ready to go after her Victoria's Secret fitting. The 20-year-old posted the cutest picture showing off her excitement.

6

Behahti Prinsloo

Kinda have a thing for my trainer ????????

A photo posted by Behati Prinsloo Levine (@behatiprinsloo) on

Prinsloo has been doing some good old-fashion planks to keep those abs of hers nice and tight.

7

Bridget Malcolm

Malcolm treated herself to a facial with Victoria's Secret skin specialist Mzia Shiman right before rehearsals.

8

Candice Swanepoel

????. @biothermworld

A photo posted by Candice Swanepoel (@angelcandices) on

The South African model known for her fitness-obsession flexed her aerial skills like a real angel in training.

9

Gracie Carvalho

Looks like this Brazilian beauty went hard on the squats and arm workouts this week.

10

Devon Windsor

We're no ballerinas...but we try ???? #TrainLikeAnAngel

A photo posted by devon windsor (@devwindsor) on

Windsor met up with pal Hadid to practice ballet a few days before rehearsals.

11

Constance Jablonski

Practice makes perfect. 500 more loops and my arms will be ready for tuesday ????????! #VSFashionShow @victoriassecret

A video posted by Constance Jablonski (@constancejablonski) on

The French model keeps her arms toned at the volleyball net with sets and forearm passes.

12
13

Josephine Skriver

5 days until the #vsfashionshow!! time to go into beast mode! #trainlikeanangel @victoriassecretsport

A photo posted by Josephine Skriver (@josephineskriver) on

Skriver was aiming high this week, training with rope-climbing techniques. So fearless.

14

Leila Nda

Nda focused on working out her waist and abs with bicycle crunches. This is a great exercise you can do almost anywhere!

15

Maud Welzen

Welzen did a fun combination of cardio and light weight training using dumbbells, proving that hitting the gym doesn't have to be boring.

16

Pauline Hoarau

Stretching out those new pants #TrainLikeAnAngel @victoriassecretsport @victoriassecret

A photo posted by Pauline Hoarau (@paulinehoarau) on

French model Pauline Hoarau was all about yoga this week. We like where her head's at.