AMERICAN blues musician B.B. King has been rushed to hospital in Las Vegas due to a diabetes-related emergency.

The blues guitarist has cancelled the remaining eight performances of his current tour after being diagnosed with dehydration and exhaustion.

King’s official website says he fell ill Friday evening during a performance at the House of Blues in Chicago and was evaluated by a doctor.

The end of his tour was to include stops next week at his own B.B. King Blues Club and Grill in New York.

His representative told TMZ he was still in a “medical care facility near his home” as of Monday.

The Rock and Roll Hall of Famer is 89 and has released over 50 albums.

No further updates on his condition were provided.

Earlier this year, King issued a public apology to fans after an erratic performance in St. Louis led to audience catcalls and early departures.

His publicists called it “a bad night for one of America’s living blues legends.”

King was also forced to cancel shows last year after he got sick during a show at the House of Blues in Chicago. At the time, his doctors diagnosed him with dehydration and suffering from exhaustion, and recommended he cancel the remaining shows for the year.

According to Ultimate Classic Rock website, King’s career dates back to 1949, when he released his first single.

Over the years, he’s recorded with rock icons like Eric Clapton, the Rolling Stones and U2.

He last released an album in 2008, One Kind Favor.

Rolling Stone magazine ranked kim at No. 6 on its 2011 list of the 100 greatest guitarists of all time.