Khloe Kardashian slams fans for confusing a picture of Sugar Ray Leonard with O.J. Simpson; "Some of you never fail to amaze me" Credit: Courtesy Khloe Kardashian

Oh, snap! Khloe Kardashian is not impressed with some of her social media fans. The Keeping Up With the Kardashians star slammed followers for confusing Sugar Ray Leonard with O.J. Simpson in a throwback photo she posted via Instagram on Feb. 20.

"#TBT I love this picture! My daddy. My second dad. My God father," Kardashian, 29, wrote. In the sweet snapshot, her late father, Robert Kardashian, is smiling alongside Bruce Jenner and the former professional boxer.

The touching sentiment, however, quickly fizzled. "For those of you that are that f---ing stupid....That's NOT OJ in my #TBT that's Sugar Ray Leonard," she added an hour later. "Some of you never fail to amaze me!"

In 1995, Simpson, 66, was tried on two counts of murder after the June 1994 deaths of his ex-wife Nicole Brown and waiter Ronald Lyle Goldman. Kardashian's biological father Robert famously represented him.

Kris Jenner, who was married to Kardashian at the time and friends with Brown, supported the victim's family during the trial. Simpson was eventually acquitted, and Kardashian later died at the age of 59 in 2003 from esophageal cancer.