Matt York/ELVH Inc.Eddie Van Halen has undergone emergency surgery, forcing his band to push back a brief tour of Japan that had been scheduled for the fall.

A statement posted on Van Halen's official website and Facebook page says Eddie, 57, underwent "emergency surgery for a severe bout of diverticulitis" -- inflammation or infection of the colon that can result in pain, nausea or other symptoms. He's expected to make a full recovery in four to six months.

The statement continues, "Van Halen's scheduled November 2012 tour of Japan is currently being rescheduled and the band looks forward to seeing and playing for their fans in 2013."

Van Halen had three November dates scheduled for Japan -- the only remaining dates on their 2012 tour itinerary.

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