It was day one of Coachella,  a three-day annual music and arts festival held in Indio, California, in the Inland Empire's Coachella Valley. But it wasn't all good vibes on Coachella's first day, unfortunately.

Getty Images/Kevin Winter

Surprisingly, a dark cloud fell over the festival in the form of the usually jolly Cee Lo Green , whose set gave his hit "Forget You" a whole new, quite literal meaning. He hit the stage a full half-hour past his advertised set time, and when he finally showed up, he was shockingly unapologetic, mumbling something about how he'd "just landed" and quipping, "It ain't my fault; they should have given me another set time!" Cee Lo had a point--a star of his caliber probably should have gone on later than 4:30pm--but his incessant bitter griping about his set being trimmed to four songs in 20 minutes (due to his tardiness), and constant swearing, won him few fans.

An angry Cee Lo demanded that the audience flip Coachella the bird, and a few spectators obliged, although most disgruntled punters didn't seem to be on Cee's side. Cee Lo and his foxy all-girl backing band managed to get through an instrumental of Black Sabbath's "Iron Man," Gnarls Barkley's "Smiley Faces" and "Crazy," and his aforementioned profanity-laden smash hit, before the plug was sadly pulled on him right before he was about to belt out Journey's "Don't Stop Believin'." It appeared to be a technical glitch that turned out to be wholly intentional.

Yes, it was a shame that no one got to witness that, but Cee Lo's reaction--brattily pouting and storming offstage in a huff--was unprofessional. Sure, he only had 20 minutes, but he could have used those minutes more productively.

The crowd was reportedly confused and in disbelief, one attendee stated.

"I know he went on late, but they should have at least let him finish his set," said a fan as she walked away.