1. Kourtney Kardashian dressed up as her sister Kim Kardashian at the 2013 Met Gala...
...And here's the actual Kim Kardashian at the 2015 Met Gala:
2. Olivia Holt dressed up as Julia Fox...
...And here's the actual Julia Fox:
3. Kaia Gerber and Austin Butler dressed up as Edie Sedgwick and Andy Warhol...
...And here's the actual Edie Sedgwick and Andy Warhol:
4. Jessica Alba dressed up as Britney Spears in her "Toxic" music video...
...And here's the actual Britney Spears in the "Toxic" music video:
5. Paris Hilton also dressed up as Britney Spears in her "Toxic" music video...
...And here's the actual Britney Spears in the "Toxic" music video:
6. Paris Hilton also dressed up as Katy Perry at her Vegas residency...
...And here's the actual Katy Perry at her Vegas residency:
7. Kerry Washington dressed up as track and field star Sha'Carri Richardson...
...And here's the actual Sha'Carri Richardson:
8. Lucy Dacus and Julien Baker dressed up as Pete Davidson and Ariana Grande...
...And here's the actual Pete Davidson and Ariana Grande:
9. Florence Pugh dressed up as Guy Fieri...
...And here's the actual Guy Fieri:
10. Rosalia dressed up as Bjork at the 73rd Academy Awards...
...And here's the actual Bjork at the 73rd Academy Awards:
11. Kendall Jenner dressed up as Marilyn Monroe...
...And here's the actual Marilyn Monroe:
12. Lizzo also dressed up as Tina Turner...
...And here's the actual Tina Turner:
13. Trisha Paytas and Moses Hacmon dressed up as Taylor Swift and Travis Kelce...
...And here's the actual Taylor Swift and Travis Kelce:
14. Drew Barrymore dressed up as Bob Ross...
...And here's the actual Bob Ross:
15. Winnie Harlow dressed up as Katt Williams...
...And here's the actual Katt Williams:
16. Reneé Rapp dressed up as Pamela Anderson at the 1999 VMAs...
...And here's the actual Pamela Anderson at the 1999 VMAs:
17. Christina Aguilera dressed up as Cher in her "If I Could Turn Back Time" music video...
...And here's the actual Cher in her "If I Could Turn Back Time" music video:
18. Victoria Justice also dressed up as Cher in her "If I Could Turn Back Time" music video...
...And again, here's the actual Cher in her "If I Could Turn Back Time" music video:
19. Brianne Howey dressed up as Nicole Kidman in her iconic AMC commercial:
...And here's the actual Nicole Kidman in the commercial:
