The Mavericks' Malo discloses he has canceer.

Malo said via a video on social media that tests discovered two spots in his colon. He will start chemotherapy after July 4.

Malo also said that some shows may be changed or cancelled. The Mavericks are touring behind their just released disc "Moon and Stars."

Malo said the band has been on a "health journey" to be healthier. That led to the finding of cancer. "Some of the shows may be affected this year as we navigate this situation and see how the therapy goes. They have told me that this chemotherapy is the least intrusive of all of them and most people continue working and their dailya ctivity as if nothing. Let's hope for the best...At the end of the day i feel like I'm getting the best care possible, and we're going to fight this all we have."

He also urged fans to "get checked out. See a doctor. Be pro-active in your health...Stay healthy. Take care of yourself, and I'll see you out on the road."

Malo said on Instagram, "Our shows in Aspen on 7/12 and Steamboat Springs on 7/14 must unfortunately be canceled due to follow-up treatment, and our show in Denver on 7/13 is rescheduled to 8/25," Malo said on Instagram. "Refunds for the canceled shows will be issued automatically through official points of purchase. Tickets for the Denver show will remain good for the new date, but we understand some folks may not be able to make it then, so if you need a refund those are available now through the next 2 weeks from your point of purchase."

"We regret any inconvenience, but appreciate your understanding, and look forward to dancing with you again soon," Malo said.