Ariana Grande, Iggy Azalea and Jennifer Lopez Join ‘American Music Award’ Line Up

The line up for this weekend's American Music Awards just got bigger with the addition of Ariana Grande, Iggy Azalea and Jennifer Lopez.

Grande will take the stage to perform a medley of hits including "Problem," "Break Free" and "Love Me Harder" before welcoming Jessie J with "Bang Bang."

Allegedly the cause of some concern for producers, Jennifer Lopez will welcome Iggy Azalea for a performance of her single "Booty."

According to TMZ, the performance has staffers anxious and ready to hit the sensor button if and when the ladies get too frisky for live television.

"Iggy and J.Lo will perform "Booty" … and network honchos are nervous … real nervous. The execs have set the ground rules … no cracks, no rubbing. There will be a 3-4 second delay, but these shows have a rich history of raunchy performances slipping through … the cracks," reports TMZ.

As previously reported, Jhene Aiko, Jordin Sparks, Kandi and Taylor Swift will be on hand for the show, which will air Sunday night on ABC.