"Gusband 4 lyfe," Kristin captioned this precious pic.
The BFFs let loose while throwing back glasses of red wine.
Justin and Kristin sport trendy shades during a morning hangout.
Summer fun! Kristin shared this pic during a lake trip with Justin and Scoot in August 2020.
The trio took to the water to celebrate Scoot's birthday.
Both Kristin Cavallari and Justin Anderson uploaded this BFF snapshot, with the Uncommon James owner noting that the two were on a "Modern Family spring break" with their significant others and her kids.
Kristin shared this cheeky photo of her and Justin enjoying a spring getaway to the Bahamas.
"Our engagement photo," Kristin captioned this adorable candid photo in February 2020.
Justin and who he described as "two of tv's most iconic blondes," AKA Kristin and Chelsea Handler!
"Let's see what happens when you put me and my besties in the wilderness," Kristin captioned a group of photos, which also featured Stephanie Biegel.
Kristin and Justin filming the festive Very Cavallari special, A Very Merry Cavallari!
Kristin and Justin enjoy an Italian getaway with significant others Jay Cutler and Austin Rhodes. "four americans walk into an italian bar..." Justin shared in November 2019.
Justin, Austin Rhodes (his fiance) and Kristin appear to be having a wonderful time on this rooftop in Nashville!
"Merry Christmas," Kristin captioned this festive group photo posted to IG in August 2019. Sneak peek of Very Cavallari's upcoming holiday special, or...?
"Just a couple of California girls living in the country"
Kristin and Justin are business partners in addition to best friends. The two collaborated on a hair coloring product called the Blonding Brush and celebrated its early success with an appreciation post last May.
"I don't remember much from the last few days but I do know it's gonna be a good episode."
Kristin and Justin are all smiles in this September 2018 photo taken to promote the celebrity hair colorist's product line, dpHUE.
"He's always my first stop in LA," Kristin shared in November 2017, while she and Justin were maintaining a cross-country LDR between Nashville and Los Angeles. Continuing, she praised his color care expertise for "keeping [her] a cool blonde."
How sweet are these two? "my longest relationship in LA is with this one," Justin captioned the giggly snapshot shared to IG in June 2017.