Nicki Minaj's booty is back in the lime light.

The rapper had been performing her single “Anaconda,” which is an ode to big butts, but it seems that she has a fake one.

What seemed like an unnatural fold in her butt seen during her performance at Fashion Rocks 2014 has sparked booty implant rumours.

According to Beverly Hills plastic surgeon Dr. David Feldmar, the curvy rapper seems to have gotten some enhancement.

“It does appear that she’s had some sort of augmentation in the gluteal area,” Dr. Feldmar, told RadarOnline.com.

“It looks like she had gluteal implants placed, or perhaps got fat injections.”

Dr. Feldmar, who specializes in body contouring and gluteal augmentation, says patients often get liposuction in their back and waist, and inject the fat into the buttocks.

“It helps get that lift and pop,” he explains, adding that a patient can get injection touch-ups every six months.

Though she has denied having any surgery on her face, the 31-year-old has never commented on nips and tucks below her neck.

SOURCE: Radar Online