The rockstars of ZZ Top were slated to kick-off their 50th Anniversary Tour later this month, but had to cancel the first four shows due to illness.

The tour was slated to begin in Ridgefield, Washington on August 16 at the Sunlight Supply Amphitheatre, followed by gigs at Airway Heights’ Northern Quest Casino Theater, Vancouver’s PNE Amphitheater, and the Yakima Valley SunDome in Washington state. However, ZZ Top released a statement noting that the band’s drummer, Frank Beard, has been diagnosed with pneumonia and was told by doctors to rest.

“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 band said in a statement on their website, noting that those who have purchased tickets will be offered refunds via point of purchase.

The 50th Anniversary outing was announced earlier this year, revealing dates across the U.S. and Europe. They are scheduled to perform through late October.

“It’s been five decades, and I think we’re starting to get pretty good at all this!” Gibbons said alongside the tour announcement. “We’re truly excited to be appearing across the continent this summer and fall, playing our bluesy kind of rock like we started in ’69. The beards, Frank’s excepted, are perhaps a bit longer, yet nothing else has changed. We’re keeping it that way.”

Check out the band’s cancelled dates, as well as upcoming tour dates in the U.S. below.

Visit Ticket Club to find tickets to see ZZ Top on tour this year

ZZ Top 50th Anniversary Tour Dates

08/16 – Ridgefield, WA @ Sunlight Supply Amphitheatre (CANCELLED)
08/17 – Airway Heights, WA @ Northern Quest Casino Theater (CANCELLED)
08/17 – Vancouver, BC @ PNE Amphitheater (CANCELLED)
08/20 – Yakima, WA @ Yakima Valley SunDome (CANCELLED)
08/21 – Woodinville, WA @ Chateau Ste. Michelle
08/23 – Irvine, CA @ FivePoint Amphitheatre
08/24 – Concord, CA @ Concord Pavilion
08/25 – Paso Robles, CA @ Vina Robles Amphitheatre
08/27 – Santa Barbara, CA @ Arlington Theater
08/28 – San Diego, CA @ Cal Coast Credit Union Open Air Theatre
08/29 – Phoenix, AZ @ Comerica Theatre
09/01 – Kansas City, MO @ Starlight Theatre
09/04 – Milwaukee, WI @ BMO Harris Pavilio
09/06 – Maryland Heights, MO @ Hollywood Casino Amphitheatre
09/07 – Tinley Park, IL @ Hollywood Casino Amphitheatre
09/08 – Sterling Heights, MI @ Michigan Lottery Amphitheater
09/10 – Huber Heights, OH @ Rose Music Center
09/11 – Burgettstown, PA @ KeyBank Pavilion
09/13 – Ocean City, MD @ Ocean City BikeFest
09/14 – Gilford, NH @ Bank of New Hampshire Pavilion
09/18 – Boston, MA @ Rockland Trust Bank Pavilion
09/19 – Wantagh. NY @ Jones Beach Theater
09/21 – Cleveland, OH @ Jacobs Pavilion
09/22 – Louisville, KY @ Champions Park
10/05 – Raleigh, NC @ Walnut Creek Amphitheatre
10/06 – Charlotte, NC @ PNC Music Pavilion
10/09 – Charleston, SC @ Volvo Cars Stadium
10/11 – Cherokee, NC @ Harrah’s Cherokee Event Center
10/12 – Manchester, TN @ Exit 111 Festival
10/13 – Alpharetta, GA @ Verizon Amphitheatre
10/15 – Augusta, GA @ James Brown Arena
10/16 – St. Augustine, FL @ St. Augustine Amphitheatre
10/18 – Estero FL @ Hertz Arena
10/19 – Tampa, FL @ MidFlorida Credit Union Amphitheatre
10/20 – West Palm Beach, FL @ Coral Sky Amphitheatre