The singer posted a photo of her cuddling with and kissing Joe, who has been battling prostate cancer since last year.
“Happy Birthday Daddy ❤️💚💙 your my sunshine ☀️ I love you sooooooo very much,” she captioned the shot, in which Joe is pulling a goofy face while his daughter plants a kiss on his cheek.
Joe also shared the photo as well as another montage of snaps from what appeared to be a small gathering for his birthday.
As Us Weekly reported at the beginning of February, Joe is undergoing radiation treatment for the disease.
A source confirmed to Us that: “He feels fine, he’s getting through it and still working. It’s all scheduled once a week. He’s super optimistic. Doctors are hopeful that this will take care of it and be the last step, and he will hopefully then be in remission and cancer-free. Joe just says he feels like it’s like going to get a checkup.”
Joe also underwent surgery for the disease in September, when an insider told Us it “went well,” adding that his kids had been “super supportive.”