1. Kelly Rowland (Frederic J. Brown/Getty Images)

Kelly Rowland (Frederic J. Brown/Getty Images)

2. Ellen DeGeneres and Portia de Rossi love Katy Perry’s outfit! (Christopher Polk/Getty Images)

Ellen DeGeneres and Portia de Rossi love Katy Perry's outfit! (Christopher Polk/Getty Images)

3. Ellen DeGeneres and Portia de Rossi love Katy Perry’s outfit! (Christopher Polk/Getty Images)

Ellen DeGeneres and Portia de Rossi love Katy Perry's outfit! (Christopher Polk/Getty Images)

4. Kelly Rowland (Jason Merritt/Getty Images)

Kelly Rowland (Jason Merritt/Getty Images)

5. Kelly Rowland( Michael Tran/Getty Images)

Kelly Rowland( Michael Tran/Getty Images)

6. Ellen DeGeneres and Portia de Rossi love Katy Perry’s outfit! (Christopher Polk/Getty Images)

Ellen DeGeneres and Portia de Rossi love Katy Perry's outfit! (Christopher Polk/Getty Images)

7. Rihanna (Steve Granitz/Getty Images)

Rihanna (Steve Granitz/Getty Images)

8. Jennifer Lopez (Steve Granitz/Getty Images)

Jennifer Lopez (Steve Granitz/Getty Images)

9. Kelly Rowland (Frederic J. Brown/Getty Images)

Kelly Rowland (Frederic J. Brown/Getty Images)

10. Alicia Keys (Jon Kopaloff/Getty Images)

Alicia Keys (Jon Kopaloff/Getty Images)

11. Alicia Keys (Kevork Djansezian/Getty Images)

Alicia Keys (Kevork Djansezian/Getty Images)

12. Katy Perry (Steve Granitz/Getty Images)

Katy Perry (Steve Granitz/Getty Images)

13. Katy Perry (Jeff Vespa/Getty Images)

Katy Perry (Jeff Vespa/Getty Images)

14. Katy Perry (Steve Granitz/Getty Images)

Katy Perry (Steve Granitz/Getty Images)

15. Jennifer Lopez (Steve Granitz/Getty Images)

Jennifer Lopez (Steve Granitz/Getty Images)

16. Kelly Rowland (Jeff Kravitz/Getty Images)

Kelly Rowland (Jeff Kravitz/Getty Images)

17. Rihanna (Steve Granitz/Getty Images)

Rihanna (Steve Granitz/Getty Images)

18. Kelly Rowland (Michael Tran/Getty Images)

Kelly Rowland (Michael Tran/Getty Images)

19. Katy Perry (Steve Granitz/Getty Images)

Katy Perry (Steve Granitz/Getty Images)

20. Rihanna (Steve Granitz/Getty Images)

Rihanna (Steve Granitz/Getty Images)

21. Alicia Keys (Kevin Mazur/Getty Images)

Alicia Keys (Kevin Mazur/Getty Images)

22. Jennifer Lopez and rapper Pitbull (Kevork Djansezian/Getty Images)

Jennifer Lopez and rapper Pitbull (Kevork Djansezian/Getty Images)

23. Rihanna (Steve Granitz/Getty Images)

Rihanna (Steve Granitz/Getty Images)

24. Rihanna and Bruno Mars( Kevin Winter/Getty Images)

Rihanna and Bruno Mars( Kevin Winter/Getty Images)
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