Jennifer Lopez and Her Big, Big Booty Surprise 'We Can Survive' Audience in Hollywood

As if the lineup for the 2014 edition of CBS Radio's We Can Survive concert event wasn't epic enough, Jennifer Lopez popped in for a surprise visit and rocked the house with a little help from her most famous body part.
Wearing some hair that looked like it came off of Ariana Grande's head, Lopez wasn't on stage for long..making her appearance in the middle of Iggy Azalea's brief 25 minute set. The crowd at The Hollywood Bowl lived for her twerking abilities though, giving J.Lo some of the biggest cheers of the night.

And, if you couldn't guess, Iggy and J.Lo performed their sexy new hit "Booty."

What's weird though, and we'll leave it up to you to make a hypothesis about this, both Grande and Azalea sang their respective parts of their joint hit "Problem" ...albeit separately and during their own sets. Why they couldn't come together and perform is beyond us.

The rest of the concert though, which was actually a benefit for Living Beyond Breast Cancer, featured the very best of what today's hottest artists have to offer. From Sia to Paramore, Iggy and J.Lo, Lady Antebellum, Taylor Swift, a beautifully pregnant Alicia Keys, Grande, Pharrell Williams and Gwen Stefani, it was most definitely an event not to miss.

Check out all of the photos in the gallery above and let us know what you think of all that booty in the comments below.