She may have had “4 Minutes” to save the world but she took three hours to prepare for a concert.

Madonna upset her devoted fans Wednesday night by kicking off her Celebration tour hours later than planned.

The “Material Girl” singer, who launched her US run of performances at the Barclays Center in Brooklyn, didn’t take the stage until 11 p.m.

With nothing but time to twiddle their thumbs, fans took to social media to gripe about Madonna’s delayed start.

“I don’t give a f–k if you’re Madonna,” tweeted one followers. “If you’re 3 hours late, you’re just f–king rude.”

“Concert supposed to start at 8:30. Madonna started at 11pm. Whole arena chanting bulls–t at her lateness. Great show but went way too late,” noted another, adding that DJ Honey Dijon opened the show with “boring house music.”

madonna performing with a giant crystal headpiece
Madonna angered fans Wednesday night by starting her Barclays Center concert three hours late.PMPhoto / SplashNews.com

madonna on stage in a black lace bra
She finally took the stage at 11:00 p.m. when she was slated to begin at 8:00 p.m.PMPhoto / SplashNews.com

madonna singing to a man
She didn’t give her fans a reason for her lateness.Matthew Rettenmund / SplashNews.com

“2:30 hours late. I WANT A REFUND NOW,” demanded another.

“I love Madonna but it’s really f–ked up how she’s literally like 2 hours late for her FIRST show in the us,” tweeted another.

A source close to Madge told Page Six Thursday morning that there were some tech issues during sound check that prompted her to be just one hour late, as Honey Dijon was scheduled to start at 8:30 p.m.

Reps for Madonna didn’t immediately return Page Six’s request for comment.

madonna performing
“You’re just f–king rude,” tweeted one fan

.PMPhoto / SplashNews.comThe Queen of Pop’s performance, however, garnered such rave reviews when she finally did start that some fans said Madonna was worth the wait.

“She was AMAZING tonight—late but made up for it!” tweeted one defender.

“Madonna showed UP at Barclays tonight,” added another. “Late as f–k but she did the thing.”

madonna singing
However, many fans thought the concert was so amazing that the Queen of Pop was worth the wait.PMPhoto / SplashNews.com