Jennifer Lopez's Instagram surprise for her bestie worked like a charm! The star was hanging out with her BFF, Leah Remini, over the weekend in the Hamptons reports E! Online - and decided to sneakily capture a moment on video to share with her fans and followers. The dynamic duo were cruising around in their car when Jennifer Lopez's Instagram moment hit.

"Effing w my click. Lol. @leahremini #besties #pottymouth #bronx #brooklynsindahouse," Jennifer Lopez's Instagram caption on her video read.

J-Lo held up her camera and it looks like Leah, best known for her role as Carrie Heffernan on "King of Queens", just assumed the "I Luh Ya Papi" star was snapping a selfie. But little did she know her bestie was filming her dancing in the drivers' seat! When Leah noticed her gal pal was recording her smooth car dancing moves to "Clique", a collaboration between Kanye West, Jay-Z and Big Sean, she wasn't impressed!

Leah yelled at the camera, but no serious harm was done to the close-knit friendship - Jennifer and her BFF laughed it off, and Leah continued to drive while smiling.

A couple of days earlier, Jennifer Lopez's Instagram was graced with another adorable example of the pair's friendship. The star posted a photo of herself and Leah sun baking in bikinis and sunglasses by the side of a pool.

"Awww sh- Brooklyn's in da house! @leahremini #poolside #besties #beautifulday #workingmamasneedabreaktoo," the singer posted as @jlo.

Jennifer Lopez's Instagram account, run by the singer herself, features a number of inside peeks at J-Lo's life. From rocking a figure-hugging sequinned dress, to posting inspirational quote pics for her fans (hashtagged with be happy, stay positive, fight for what you want, and love yourself), and recent photos from Paris Fashion Week, J-Lo's keen to keep her followers in the loop.