Zac Brown Band Postpones Tour: ZB Collective/BMG/Wheelhouse's Zac Brown Band have postponed the spring 2020 leg of The Owl Tour "out of caution and due to increasing public health concerns," according to a post made on the band's Facebook page today (3/10). Rescheduled dates will be announced soon, and tickets will be honored on the new dates. Summer 2020 tour dates – starting May 24 in Gilford, NH – will not be affected.