Bassist and singer John Wetton has lost his battle with cancer at age 67.

Wetton was a member of the 1970's group King Crimson before forming supergroup Asia in the early 1980's.

Asia is scheduled to open for Journey at the iWireless Center on Monday, April 3. Arrangements had already been made for Billy Sherwood from Yes to replace Wetton during the first few months of the tour while Wetton received cancer treatments. It's believed Sherwood will now fill the remaining tour dates as well.

Read more details on Wetton's career and passing from UltimateGuitar.com.