Kendall Jenner and Hailey Bieber meet up for a Pilates class in LA # KendallJenner #HaileyBieber Photos: Backgrid

Hailey Bieber and best friend Kendall Jenner jump-start the holidays with a private Pilates session

Kendall Jenner Masks Up For Hot Pilates Class With Hailey Bieber in LA, Hailey Bieber, Kendall Jenner

Kendall Jenner Masks Up For Hot Pilates Class With Hailey Bieber in LA, Hailey Bieber, Kendall Jenner

Kendall Jenner enjoys a private Pilates session with pal Hailey Bieber

Kendall Jenner and her best friend Hailey Bieber are seen leaving a hot pilates class in LA

Hailey Bieber Steps Out Dressed To Impress At Her Latest Business Meeting In Beverly Hills 4.20.21

Hailey Bieber Gives Paparazzi The Middle Finger While Arriving In A Bad Mood To A Meeting In B.H.

Hailey Bieber & Kendall Jenner Meet Up for Afternoon Pilates Class, Hailey Bieber, Kendall Jenner

Kendall Jenner and her best friend Hailey Bieber are seen leaving a hot pilates class in LA

Kendall Jenner and Hailey Bieber meet up for a Pilates class in LA #KendallJenner #HaileyBieber Photos: Backgrid

Kendall Jenner and Hailey Bieber meet up for a Pilates class in LA #KendallJenner #HaileyBieber Photos: Backgrid

Kendall Jenner and her best friend Hailey Bieber are seen leaving a hot pilates class in LA

Kendall Jenner & Hailey Bieber Hit Up Pilates Class Together: Photo 4836896, Hailey Bieber, Kendall Jenner Photos

Kendall Jenner & Hailey Bieber Kick Off the New Year at Pilates Class: Photo 4686057, Hailey Baldwin, Hailey Bieber, Kendall Jenner Photos

Hailey Bieber and Kendall Jenner were spotted at a Pilates class on Monday afternoon after spending New Year's weekend. #HaileyBieber #