Kim Kardashian, Jennifer Lopez and More — Are Their Butts Real Or Fake?!

What a (Rear) View!

“Kiss my ass … ‘cause it’s finally famous,” pint-size Nicki Minaj, 31, raps about her gravity-defying backside, which Dr. Bruno says “seems unnaturally large.”

The singer “appears to have been enhanced with a gluteal implant or possible a fat-transfer procedure.”

J… Grow?

Jennifer Lopez was one of the first celebs to embrace her full backside — and she has said she’d never consider getting implants.

Houston-based plastic surgeon Dr. Wilberto Cortés thinks the 44-year-old “Booty” singer is for real.

“Her Puerto Rican genes, combined with hard work at the gym, created one of the most beautiful butts of all time,” he says.

Bubble Butt

Forget the rest of them—it’s hard enough to keep up with Kim Kardashian’s backside!

If the reality star, 33, has enhanced her rear, “the most likely procedure would be a Brazilian butt lift,” says Dr. Cortés, who rules out butt implants (a rep for the star has denied any enhancements) because “her butt jiggles like a normal butt.”

Twerk-Out Regimen

“When people say my butt’s fake, I take it as a compliment,” Coco tells In Touch of the rumors she’s done more than simply work out to maintain her supersize derriere.

But Beverly Hills plastic surgeon Dr. Williams Bruno believes she’s had help from a Brazilian butt lift, in which fat is sucked out of another area of the body and inserted into the rear.

“It’s much larger than before,” he says, “and the shape changed.”

Va-Va-Volume

Watch your back, Kim! Khloé Kardashian’s got a new man — and what appears to be a new booty, too!

“The projection of her buttocks is suggestive of either implants or a Brazilian butt lift,” Dr. Bruno says of the 29-year-old’s new proportions (a rep for the star calls rumblings of surgery “ridiculous”).

“She’s much more curvaceous now.”