Moments after playing what she called "the best show ever" at Summerfest in Milwaukee, Lizzo took to Twitter late Thursday night to call out a festival security guard she claimed tackled her team and used "hurtful language."

She called the security guard a "racist bigot."

"Did anybody get footage of the security guard that tackled and attacked my team @Summerfest," Lizzo posted around 11 p.m. Thursday. "They slapped and manhandled my hair stylist and stylist and I'm out for blood."

In a second tweet posted shortly after, Lizzo shared a video of a security guard standing backstage who was the person she said "attacked my hair stylist and my stylist. … He tackled them to the ground and manhandled them and slapped them."

"They're keeping me from going over there and having my way with him, but I'm filming this right now just in case I need some evidence and just in case I need to put this on the internet," Lizzo said in the video. "He needs to be in handcuffs."

She asks the man for his name, but he doesn't respond.

A little more than an hour after the clip was posted, the clip had been seen 41,000 times on Twitter.

"This racist bigot put his hands on my people and used hurtful language while tackling and dragging my team off the festival grounds," Lizzo said in the tweet with the video, asking for anyone with footage to send it to her.

In a third tweet, Lizzo wrote, "That was the best show ever but I feel like I can’t even celebrate cuz racism don’t matter if you a headliner."

Two hours after she first tweeted, the singer posted that she and her team planned to file a complaint against the guard.

Summerfest issued a response around 1:30 a.m. Friday.

"Lizzo gave an incredible performance which she now feels is tarnished by events which occurred during the performance," the statement reads. "We do not tolerate racism in any form. We will conduct a thorough investigation."

"We have an experienced crowd management staff who strive to protect performers & fans," the statement continued. "While there may be challenges during a performance, we expect those challenges to be handled professionally & respectfully. If those standards were not met, we will take appropriate action."

Lizzo confirmed through Twitter that Summerfest had responded and will conduct an investgation. The Journal Sentinel reached out to her publicist Thursday night but has yet to hear back.

The hairstylist took to her Instagram story to share her thoughts about the incident and Milwaukee. "Mil-mother*******-waukee ... y'all got some dumb*** people in Milwaukee, just dumb, racist, homophobic, all that of that plus more."

In a video account he posted on Instagram, stylist Marko Monroe said he was in the stage's pit to take photos of Lizzo for Instagram when a security guard grabbed him. Monroe said he tried to show his badge to the guard, but the guard "manhandled" him.

The guard took Monroe to a jail cell, he said, and had an "ego-driven hurrah moment." The stylist did not identify specific language the guard used but said the guard's actions "screamed homophobia one-thousand percent."

Lizzo tweeted a "friendly reminder" on Friday morning that you "don't have to say the 'n word' to be racist. That's not the sole requirement."

Journal Sentinel reporters Keith Schubert and Sophie Carson contributed to this story.

This is a developing story. Check back for updates.

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Contact Piet at (414) 223-5162 or plevy@journalsentinel.com. Follow him on Twitter at @pietlevy or Facebook at facebook.com/PietLevyMJS.