The Ying Yang Twins have a habit of going a little too loud on stage. In 2017, Kaine had to be escorted off stage in the middle of a performance after the duo member could barely stand. Now the other half of the Twins, D-Roc, has had a similar experience.

During a concert in Springfield, MO this weekend, D-Roc collapsed on stage and had to be dragged away by two security guards. The duo were half an hour into their set when they fell to the ground and security rushed to help.

The Ying Yang Twins, who achieved mainstream success in the early 2000s for collaborations with Britney Spears and Lil Jon, were performing at the Ozark Empire Fair. The concert was headlined by Vanilla Ice.

D-Roc’s condition is unknown at this time, and it’s unclear exactly what happened. Apparently temperatures were in the 80’s so it seems heat exhaustion is unlikely. His collapse definitely ruined the show, but the concert continued after he was taken off stage.

Earlier this year, the Ying Yang Twins appeared on Vlad TV to refute the origins of the “haaan” ad-lib. They claimed to have invented it, not French Montana. “Look, the saying came from my dad, at a time when he was in a bad place in his life, so we came up with this saying,” Kaine said. “It’s the fact that when we got to New York, New Yorkers said, ‘F**k that French Montana is talking about, that ‘Haaan’ is from y’all.'”