The reality star sisters were joined at the event by their BFF Hailey Baldwin, among other friends.
“National Siblings Day… Wish I could be with all my 8 other older sibs on this day xo,” Kylie wrote on her Instagram account that day.
Kylie is sporting newly dyed blue hair for the music festival this weekend!
FYI: Kylie is wearing Timberland boots and a Jennifer Fisher choker. Paris is wearing a Flower Children Only meow crown.