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The Rocket Man's appendix is severely inflamed.
Elton John has been forced to postpone an upcoming European tour after coming down with a nasty case of appendicitis that will mean he'll have to undergo surgery, his rep announced.
A statement on John's official website revealed the "Sad Songs" singer first took ill during a recent string of dates.
"Following a number of exploratory scans and blood tests with his medical team in the UK, a diagnosis of appendix abscess surrounding retrocaecal appendicitis has been confirmed," the statement read.