Rock legend Rod Stewart abruptly canceled six shows of his Las Vegas residency for a serious health concern—and fans of the iconic singer are very concerned.

On Friday, June 6, the rockstar, 80, announced the disappointing update on social media.

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"I have to cancel and reschedule my next six concerts in June as I continue to recover from the flu," Stewart shared via Instagram . "So sorry my friends."

The "Have I Told You Lately" singer added, "I'm devastated and sincerely apologize for any inconvenience to my fans. I'll be back on stage and will see you soon - Sir Rod💔."

The following shows have been canceled:

June 7 at The Colosseum at Ca

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