Jennifer Lopez and James Corden
Credit: Cliff Lipson/CBS via Getty Images

Just when you thought you knew Jenny from the block, she makes an apperance on Carpool Karoke with James Corden.

Jennifer López kept it real and talked about her five proposals and if her butt was insured or not. To honor the karoke part of the segment, López and Corden sang hits like Love Don't Cost a Thing, Jenny from the Block, and On the Floor. She also taught James a thing or two about how to dance in a music video.

As if the show couldn't get any better— James took the American Idol and Shades of Blue star's phone after seeing all her A-list contacts and texted Leonardo Dicarpio saying “Hey baby, I'm kind of feeling like I need to cut loose. Any suggestions?” To Jennifer's suprise, Leo actually replies believing it's her.

Watch this must-see video below!