Speaking on RTÉ Radio 1's Sunday with Miriam show, where rising star David Keenan was also being interviewed, Brian Kennedy admitted "I got through it all. And I'm sitting before you now feeling very hopeful."

The singer-songwriter revealed back in 2016 that he had been diagnosed with colorectal cancer. The news came just weeks after learning that his brother, fellow singer Bap Kennedy, had also been diagnosed.

At the time of the diagnoses, the brothers were estranged, but they reconciled briefly before Bap Kennedy passed away in October 2016.

Now, speaking yesterday with Miriam O'Callaghan, Brian said, "The prognosis was they got it all, thank God. Now there's still a road to go, as there always is with this disease."

He also detailed the extensive side-effects involved in the treatment.

"I was very allergic to the drugs," he told the host. "They gave me Fentanyl, they gave me Ketamine, they gave me Morphine.

"They gave me all this kind of stuff, and I had terrible hallucinations and nightmares for about four or five days. That I would never like to go through ever again in my life.

Going on air soon @RTERadio1 10am with the superb Finbar Wright of The Irish Tenors and these two great singer/songwriters - @KennedySinger & @DavidKeenanmuso pic.twitter.com/hvQxDq8KCo

— Miriam O'Callaghan (@MiriamOCal) December 16, 2018

"The good news is the doctor said to me, 'Brian, the good news is you'll never be an addict!'"

He also revealed that the operation meant that he "had to learn to walk again".

"Because I'd been in bed permanently for about a week-and-a-half, two weeks," he explained. "And I didn't realise that that was enough for the muscles in your legs to really atrophy and you couldn't use them."

Kennedy now says that he will undergo chemotherapy "in January at the latest".

"I've been on an incredible journey in the last two years of leaving no stone unturned. And this, it seems to be the best path."

Listen to the full interview here.