Rod Stewart Needs Oxygen Tank During Utah Concert, Video

Rod Stewart had a rough show in Utah last night … doubling over in discomfort during the set — and needing puffs from an oxygen tank onstage.

The singer-songwriter hit the stage at Utah First Credit Union Amphitheatre in West Valley City, UT last night … and he wasn’t moving around the stage as much as usual.

Check out the video, obtained by TMZ … Stewart’s supporting himself on musical instruments, barriers and even a pole at the side of the stage.

One rolls out an oxygen tank, and Stewart takes some big inhales … steadying himself as the show goes on.

Stewart makes the crowd laugh while also informing them he dang near fainted … a testament to his good nature — even in a scary moment. He finished his show sitting in a chair, just needing to get off his feet.

While we don’t know the exact reason for Stewart’s unsteadiness, West Valley City is about 4,300 feet above sea level … and the altitude definitely could’ve hit him harder than he expected. He also recently canceled a show in San Diego, citing laryngitis, though he felt well enough to hit a World Cup match.