Tom Parker, 31, has recently revealed that he received optimistic news about his ongoing battle with terminal brain cancer.

The Wanted singer, who was diagnosed with stage four glioblastoma in October 2020, informed his Instagram followers that his brain tumor has significantly shrunk after the treatment.

He posted a photo of himself, his wife Kelsey Hardwick, and their two children, captioning, “SIGNIFICANT REDUCTION. These are the words I received today and I can’t stop saying them over and over again.”

“I had an MRI scan on Tuesday and my results today were a significant reduction to the tumour and I am responding well to treatment,” he added. “Everyday I’m keeping on the fight to shrink this bastard!”

The British singer has been undergoing radiation and chemotherapy treatment. He went on to thank the “wonderful” U.K. National Health Service, stating, “You’re all having a tough time out there but we appreciate the work you are all doing on the front line.”

Thanking his wife, Parker said, she “has literally been my rock.” He added, “My babies (his children) I fight for you every second of every day.”

“Friends, family and everyone on this journey with me- you have got me through my darkest days,” Parker said. “To everyone on here- your love, light and positivity have inspired me. Every message has not been unnoticed they have given me so much strength.”

“This journey is a rollercoaster that’s for sure,” he continued. “Today is a f—ing good day.”

In October, Parker revealed that he had been diagnosed with grade 4 glioblastoma, a terminal disease that has a life expectancy ranging from three to 18 months after diagnosis.

He first experienced symptoms of the tumor in July, having a seizure at his home in Southeast London. After having the second episode of seizure, he was immediately sent for an MRI scan and hospitalized.

At the time, he wrote on Instagram, “We are all absolutely devastated but we are gonna fight this all the way. We don’t want your sadness, we just want love and positivity and together we will raise awareness of this terrible disease and look for all available treatment options.”

“It’s gonna be a tough battle but with everyone’s love and support we are going to beat this,” he added. The article appeared on PEOPLE.