Alabama Barker heated up the desert with her Coachella outfit … looking fire in a revealing yellow dress while hanging out with her dad, Travis Barker.

The up-and-coming rapper shared several pics of her look from Friday … showing off her bod in the low-cut ensemble with the maroon silhouette of a woman on the left side of her chest.

Only small straps covered up parts of her back … and, the dress ended high on her thighs, revealing some leg above the knee-high, dark brown boots.

Alabama — glammed up in makeup — makes a few pouty faces for the camera … proving a modeling career is hers if she ever decides to go down that path.

Barker shared a pic with Travis, too … who got the crowd jumping by joining legendary rap group Three 6 Mafia onstage during the festival’s first day.

It’s a cute father-daughter picture … with Alabama and the blink-182 star throwing up peace signs — and, Travis even adds his best “duck lips” to the snap.

Travis also got to hang with Machine Gun Kelly, who hopped up for a song with the group too … his first spotting since Megan Fox gave birth to their child.