Shay Mitchell, Megan Thee Stallion Jessie James Decker and more stars have shared the results of their hard work in the gym and we're celebrating their transformations on National Fitness Day.
A year after sharing her 100-pound weight loss, the 40-year-old singer strikes a perfect yoga pose that's sure to inspire your next workout!

Check Out the Biggest Celeb Fitness Transformations of 2021

The Biggest Celebrity Body Transformations Of 2021

Check Out the Biggest Celeb Fitness Transformations of 2021

LOOK: Celebrity fitness transformations of 2021

Biggest Loser 2021 Transformations - Linda Kriel Fitness

The 19 Most Extreme and Impressive Celebrity Fitness Transformations - Men's Journal

Chris Hemsworth Is Exactly What's Wrong With the Fitness Industry

Before and After: Celebs With Incredible Fitness Transformations - Slice

Henry Cavill Body Transformation

Check Out the Biggest Celeb Fitness Transformations of 2021

5 Essential Steps to Becoming a Celebrity Personal Trainer - USA, UK, Canada, Australia Fitbudd

Top 25 Fitness Influencers of 2022 - The Barbell

Aayush Sharma reveals the best advice he's got for body transformation; netizens feel it's from Salman Khan

Photos from Check Out the Biggest Celeb Fitness Transformations of 2021