Kevin Hart Flames Seven Time Daddy Nick Cannon By Exposing Phone Numbe

Kevin Hart and Nick Cannon are buddies.

The kind of buddies who pull expensive pranks on each other.

It was Kevin's turn to get at Nick, and he did it a big way with billboards in Los Angeles, Atlanta, and New York.

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A post shared by Kevin Hart (@kevinhart4real)

"Since my brother @nickcannon decided to buy me a lama for my B Day I decided to do something nice for him as well….Here is a digital billboard in Los Angeles….I also did some in ATL & NY," Hart captioned the post. "If u want any advice on fatherhood please call my BEST FRIEND @nickcannon ….I'm sure his phone has been ringing nonstop 😂😂😂😂😂😂 GOTCHA BACK BITCH #PRANKWARS."

Cannon recently had his fourth child in six months with three different women.

Before his recent surge of fertility, he just had a set of twins with Mariah Carey and another loosie with then-girlfriend Britney Bell.

It looks like Hart's prank hit home: