King Gizzard And The Lizard Wizard have cancelled the remaining 13 dates of their current UK and European tour, citing frontman Stu Mackenzie’s newly revealed struggle with Crohn’s Disease.The Australian psych-rock outfit had completed four dates on the run, with the most recent being a headline show in Prague last night (August 5). Among their axed performances include a set at the POLandROCK Festival in Szczecinek, Poland, which was scheduled to go down tonight (August 6).“Unfortunately due to a personal health crisis we’re going to have to cancel the remaining EU and UK dates,” Mackenzie wrote in a statement shared to the band’s Instagram page overnight. “For the past decade or so I’ve dealt with Crohn’s Disease the best I can.