Girls, what's their weakness? Rapping! Kim Kardashian shared a hilarious video of mom Kris Jenner and lifelong pal Nicole Richie rapping on Keek Wednesday, Jan. 15. The duo attempts to perform Salt-N-Pepa's 1993 classic "Shoop," but can't get through it without laughing.

"My fave new rap group," Kardashian, 33, captioned the footage she shot of Jenner and Richie. In the video, the 58-year-old momager and 32-year-old fashion designer wear sideways baseball caps and bounce up and down while trying to rap.

"Here I go, here I go, here I go again," the girls begin. "Girls, what's my weakness?" Richie asks. "Men!" Jenner shouts.

Kardashian and Richie then break out into giggles, and Kris tries to continue the song. "Here we go, here we go, here I go again," she raps. "Hey girl, what's my weakness?"

"Did you say 'Hey girl, what's my weakness?'" Richie asks Jenner while laughing. "No. Girls, what's my weakness? Men!"

Watch the funny video above and tell Us how you think they did!