The Joey & Rory star was initially diagnosed with the disease in May, 2014 and she underwent a hysterectomy to remove the tumour that summer (Jun14) - just four months after giving birth to the couple's daughter, Indiana, who was born with Down syndrome.

Feek was subsequently told she was in remission, but after falling ill again earlier this month (Jun15), doctors discovered the cancer had returned.

Her husband and bandmate Rory Feek broke the news to fans in a post on their blog on Sunday (14Jun15), revealing his wife will soon begin chemotherapy and radiation treatment in a bid to beat the disease for a second time.

He writes, "Joey will be in for an even tougher road ahead."

He adds, "Here's what Joey and I know... God has a plan, and His plan is our plan. Each day that we're given is a beautiful gift from Him to us. And while we will pray each day for a miracle, we're gonna live each day as if it's a miracle. And it is.

"Lord, as believers... we trust you completely and pray for your will to be done. Not ours. But, as flesh and bone, husband and wife... we pray for complete and total healing in Joey's body, so we can grow old together, holding hands in rockers on our front porch watching the sun go down. So that our sweet little baby Indiana can not miss one precious moment with her mama. Amen. Amen. Amen."