See the childhood friends being "oh so cool"
Credit: Courtesy Kim Kardashian

Holy flashback!

Kim Kardashian traveled back to the ’90s and posted one of the most epic Throwback Thursday photos ever to Instagram yesterday, uploading a 20-year-old pic of herself and Nicole Richie as 13-year-olds.

The childhood friends looks awesomely giddy and innocent as they give thumbs-up signs, both grinning broadly – with Richie sporting braces.

“#ThrowbackThursday @nicolerichie and I being oh so cool at 13 years old,” Kardashian wrote. Richie linked to the photo on Twitter, along with the warning: “Brace Yourselves!”

Kardashian has posted vintage photos of herself and Richie before, including this pic, shared in 2012, of herself and her siblings helping Richie celebrate her 14th birthday in 1995.