Jason Aldean leaves the stage during the concert in Connecticut, the latest victim of heatstroke

Jason was in trouble during his concert in Connecticut on Saturday night … he was filmed offstage mid-song, and while we don’t know, there are indications it was heat-related.

The country star was performing in the heat and humidity at Hartford’s Xfinity Theater when she stopped singing and buried her face in her arm. It looks like he was wiping off his sweat and then ran off stage.

Check out this video… Jason starts mouthing the words again while standing at the mic, but it’s all very brief, and that was the end of the show. Something is clearly wrong.

We don’t know what happened after that…but one of Jason’s fans took to Twitter to provide some details.

She wrote… “It was hotter than hell. It was bad enough just standing in the pit that I can’t imagine performing in jeans, boots and a hat under all those lights in that breezeless humidity. I hope be well!”

He also said that Jason never came back and the show went on hiatus. Jason is currently on his “Highway Desperado” tour, so hopefully it’s not too serious.

We’ve reached out to Jason’s reps for comment…so far no response.