"According to Eddie Van Halen's physician, he is undergoing a battery of comprehensive medical tests to determine a defined diagnosis and recommended medical procedures," according to a statement released Monday by Van Halen's representative and the tour promoter, Live Nation.
Eddie Van Halen has had medical setbacks in recent years, including a battle with cancer and a trip to rehab. A representative for Van Halen did not return a phone message or e-mail from The Associated Press seeking further information about his ailment.
The concerts that were postponed were this week's shows in Dallas; Cincinnati; Raleigh, N.C.; and Baltimore. They have been rescheduled for April.
Van Halen embarked on their reunion tour with original lead singer David Lee Roth last fall.
