On Friday, ahead of the weekend's music event, the beauty mogul debuted neon pink hair on Instagram while declaring herself as a "cool mom".
Kylie was all smiles in her denim jacket featuring a plaid print on the collar and a yellow "The Power of Dreams" design on the back.
The entrepreneur held tight to a Louis Vuitton traveling bag with one hand, opting to wear her dark tresses in a bun.
The 38-year-old mother of three shared an Instagram video of Jordyn joining them on the jet. Fans flooded the comments while some were excited that Kylie finally chose to share a pic of her man on Instagram, others were conflicted about the new parents partying it up at the music festival instead of spending time with their two-month-old baby girl.
From the looks of the photo, it seems to have been taken in California where Jenner resides, so it looks like she made a decision to opt out of the birth of her sister's baby in Cleveland.
She donned jeans and a sports bra, revealing her flat stomach.
The real kicker is that Stormi's stroller matched her look.
Jenner also took to Snapchat on Thursday to congratulate her half-sister Khloe on giving birth to a healthy baby girl.
Less than 48 hours before the birth, DailyMail.com published footage of Tristan allegedly kissing Lani Blair, a woman who works at a strip club.