Who doesn't love celebrity couples? I mean, some are simply unforgettable, no matter how long ago they dated.

On the other hand, some famous couples just fade into insignificance as if they never existed in the first place!
So prepare yourself for some serious WTF moments as we take a trip down memory lane with these 22 celeb couples we completely forgot dated.
1. Madonna and Tupac

2. Jenna Dewan and Justin Timberlake

3. Macaulay Culkin and Mila Kunis

4. Lenny Kravitz and Nicole Kidman

5. Jared Leto and Cameron Diaz

6. Zachary Quinto and Jonathan Groff

7. Courteney Cox and Michael Keaton

8. Michael Sheen and Rachel McAdams

9. Nick Cannon and Kim Kardashian

10. Sarah Jessica Parker and Robert Downey Jr.

11. Ryan Gosling and Sandra Bullock

12. Jessica Biel and Chris Evans

13. Nathan Sykes and Ariana Grande

14. Taylor Swift and Joe Jonas

15. Tyra Banks and Drake

16. Vanessa Hudgens and Josh Hutcherson

17. Janet Jackson and Matthew McConaughey

18. Paul Rudd and Jennifer Aniston

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19. Cher and Tom Cruise

20. Miley Cyrus and Nick Jonas

21. Sinitta and Brad Pitt
