Former Metallica bassist Jason Newsted has been diagnosed with walking pneumonia, forcing his current band Newsted to pull out of this week's Gigantour dates. Newsted and group will miss Canadian tour dates.

"I'd been feeling a bit under the weather while performing the most recent Gigantour shows, so I went to the doctor on my day off today, and I was diagnosed with walking pneumonia," Newsted said, according to Blabbermouth. "So under doctor's orders, I'm taking a week to rebuild ... My apologies to our Canadian brothers and sisters in regions where we will not be appearing this week. I'm gonna work on keeping me alive so together we can keep the metal alive!"

Gigantour, the traveling music fest founded by Megadeth frontman Dave Mustaine (another Metallica alum), kicked off earlier this month with Megadeth headlining. Newsted, DeviceHellyeahDeath Division and Black Label Society are the openers.

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