Here are 15 celebrities who didn't give AF about anything, showing off just how badass they are via Instagram. From Ariana Grande to Katy Perry to Lady Gaga, Lorde and more, check out the gallery below:

1. Demi Levato shutting down the thigh gap thing.

2. Ariana Grande acknowledging she's got small boobs.

3. Jessie J and her cellulite.

4. Chrissy Teigen showing off her stretch marks.

5. Lily Allen acknowledging her acne at 30.

6. Selena Gomez just being happy. (Presumably without any Bieber drama.)

7. Zooey Deschanel waking like this:

8. Kim Kardashian not shy about her sunburn.

9. Katy Perry doing this:

10. Lorde not giving AF about her pimples.

11. Lady Gaga being proud of her size.

12. Brooklyn Decker showing she's flawless by showing she's not perfect.

13. Lena Dunham working out.

14. The many looks of Anna Kendrick.

15. Even Miley gets pimples.