Kelsea Ballerini says her dog Dibs has exceeded his medical team’s expectations as he continues to battle inoperable heart cancer.

In a recent round of “Ask Me Anything” with fans on her Instagram Stories, the singer said that Dibs is “hanging in there tough” as he continues to undergo chemotherapy.

“Sweet boy had another round of chemo today,” she said in a story on Tuesday (December 3).

“Honestly, his original prognosis was 4 months. That was 4 months ago,” she continues. “But he’s still stable and happy, so every day is a gift and I’m a little extra grateful that we’re spending the holidays together this year.”

Ballerini also celebrates every victory in Dibs’ battle with cancer: She shared a photo of her dog posing with a bandana that reads “Kicking Cancer’s Tail” and sitting in front of a banner that reads “We are so proud of you.”

• Ballerini adopted Dibs, a doodle, in 2015. She named him after a hit from her debut studio album from that year.
• In August, she revealed Dibs’ terminal cancer diagnosis, saying at the time that she planned to give him “the big drugs” to keep him comfortable and stable for the rest of his time left.
• During her sold-out show at Madison Square Garden in late October, Ballerini burst into tears as she sang lyrics from her song “Penthouse,” which is about her dog.
• The singer also shared a special photo of Dibs on Thanksgiving, writing, “He’s my little turkey forever.”