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1. 1. Jordin Sparks and Jason Derulo share a moment on the red carpet. (Photo: AP)

2. 2. Kelly Rowland arrives at the 40th Anniversary American Music Awards. (Photo: AP)

3. 3. Brandy Norwood arrives at the 40th Anniversary American Music Awards. (Photo: AP)

4. 4. Christina Aguilera arrives at the 40th Anniversary American Music Awards. (Photo: AP)

5. 5. Ludacris arrives at the 40th Anniversary American Music Awards. (Photo: AP)

6. 6. Psy arrives at the 40th Anniversary American Music Awards. (Photo: AP)

7. 7. Nicki Minaj arrives at the 40th Anniversary American Music Awards. (Photo: AP)

8. 8. Jordin Sparks arrives at the 40th Anniversary American Music Awards. (Photo: AP)

9. 9. Usher poses with his American Music Award. (PR)

10. 10. MC Hammer and Psy pose together after their blazing performance. (PR)