Celebrity nip-slips are their misfortune, but for our viewing pleasure!! Check out 18 celeb nip-slips from Paris Hilton, Britney Spears, and more below!! All are NSFW, so keep that in mind!!

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1. Rihanna
2. Demi Lovato
3. Milla Jovovich
4. Pamela Anderson
5. Lady Gaga
6. Jennifer Love Hewitt
7. Sophie Monk
8. Janet Jackson
9. Christina Ricci
10. Amy Winehouse
11. Anna Lynne McCord
12. Jessica Simpson
13. Keira Knightley
14. Kirsten Dunst
15. Mischa Barton
16. Paris Hilton
17. Britney Spears
18. Tara Reid
19. Tila Tequila