Lady Gaga was the headliner for a jam-packed opening night of Coachella … and the superstar didn’t disappoint the crowd of thousands!

Gaga did several costume changes in a flash — from her in the dirt with skeletons, to being lifted by her dancers while being dressed in white feathers — while rocking on a stage that kept changing as she belted her hits.

Gaga rocked the fest through a storyline with numbers that included “Bloody Mary,” “Judas,” “Abracadabra,” “Poker Face,” “Disease,” “Papparazi,” “Killah,” “Born This Way,” “Shallow,” and “Bad Romance.”

Of course, that’s only a few of the songs she belted out in the desert — as her whole performance was about 2 hours long … but you know her little monsters were loving every damn minute of it!

The superstar obviously leaned heavy on new material for this gig, BTW … ’cause Coachella’s two weekends unofficially kick off her upcoming ‘Mayhem Ball’ tour. The big tour officially starts in Nevada in July.