Lady Gaga's stunning theatrical Coachella set was an operatic triumph, writes SFGATE tech reporter Stephen Council.

Lady Gaga put on an electrifying show as she headlined Coachella on Friday, April 11, in Indio, Calif. Eagle-eyed fans spotted that the singer made references to several iconic music videos with her choices of outfits and the set.

Lady Gaga looked proud enough to weep. Peering out at the vast audience before her at Coachella on Friday night, the pop superstar paused about 45 minutes into her headlining performance to deliver a little speech — a royal address from Mother Monster to her loyal minions — from the second-story balcony of a crumbling gothic structure she’d built on the festival’s main stage.