Atlanta progressive metallers MASTODON have announced the cancelation of their previously announced shows that were to take place from August 7 through September 3 due to a personal family matter. MASTODON will return to the road in Latin America in late September. The September 5 show in Iceland has been rescheduled for December 5.

Canceled dates.

Aug. 07 - Montreal, QC - Heavy Montreal Fest

Aug. 12 - Oslo, Norway - Oya Festival

Aug. 14 - Dinkelsbühl, Germany - Summer Breeze Fest

Aug. 15 - Hamburg, Germany - Elb-Riot Festival

Aug. 16 - Dornbirn, Austria - Bregenz Conrad Sohm

Aug. 18 - Cologne, Germany - Essigfabrik

Aug. 19 - Berlin, Germany - Kesselhaus

Aug. 20 - Charleville Mezieres, France - Cabaret Vert

Aug. 21 - Hasselt, Belgium - Pukkelpop Shelter Marquee

Aug. 25 - St. Petersburg, Russia - SKK Arena (w/ Metallica)

Aug. 27 - Moscow, Russia - Olympysky (w/ Metallica)

Aug. 29 - Reading, UK - Reading Festival (The Pit Stage)

Aug. 30 - Leeds, UK - Leeds Festival (The Pit Stage)

Aug. 31 - Istanbul, Turkey - 100% Metal Headbangers

Sep. 02 - Thessaloniki, Greece - Principal Theater Club

Sep. 03 - Athens, Greece - Gazi Hall Entertainment Stage

MASTODON's latest album, "Once More 'Round The Sun", sold around 34,000 copies in the United States in its first week of release to land at position No. 6 on The Billboard 200 chart. The record arrived in stores on June 24, 2014 via Reprise Records.

"Once More 'Round The Sun" was recorded in Nashville with Grammy Award-winning producer Nick Raskulinecz, who is known for his work with RUSH, DEFTONES, FOO FIGHTERS and ALICE IN CHAINS.