Sad news, Yakima -- the ZZ Top show set for Aug. 20 at the Yakima Valley SunDome has been canceled. The show is one of four the band has canceled at the beginning of its 50th anniversary tour because drummer Frank Beard is suffering from pneumonia.

According to a Thursday (Aug. 8) news release from CMoore Concerts and Live Nation:

It was announced today that the first four dates of ZZ Top’s 50th Anniversary Tour have been canceled due to the fact that drummer Frank Beard has been diagnosed with a case of pneumonia.  He apparently came down with the ailment while on the band’s just completed tour of Europe and, upon his return home, was advised by his physician to rest and recuperate.  The four dates affected are in Ridgefield, WA, Airway Heights, WA, Vancouver, BC and Yakima, WA for the initial run of the tour that had been set to start on August 16th.

The tour will now kick off at Chateau Ste. Michelle Winery in Woodinville on Aug. 21. Those who purchased tickets can get refunds at their point of purchase.