Teddi Mellencamp is praising her dad, John Mellencamp, in the wake of her cancer battle. "It's been 10 months since my brain surgery and I am so grateful to @johnmellencamp for continuously being there for me and my family the entire time," Teddi, 44, wrote via Instagram on Friday, October 24, along with a photo of the famed rock star and her two daughters, Slate and Dove. "Although apparently now that I'm no evidence of disease I can take photos without myself in it so I guess we're all healing 🤣," she continued. "Love you so much, Cougs. Thank you for everything ❤️.