Jennifer Lopez, Rihanna at iHeartRadio Music Awards

Jennifer Lopez poses backstage at the 2014 iHeartRadio Music Awards held at The Shrine Auditorium in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Getty Images)

Jennifer Lopez and Rihanna (Photo by Getty Images)

(Photo by Getty Images)

Jennifer Lopez and Pharrell Williams (Photo by Getty Images)

(Photo by Getty Images)

(Photo by Getty Images)

Rihanna, Ryan Seacrest and Jennifer Lopez (Photo by Getty Images)

Jennifer Lopez and Rihanna (Photo by Getty Images)

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