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Grandma Betty describes herself a “Cancer Fighter” and a "Follower of Jesus" on the Instagram account her 18-year-old grandson opened for her. She posted her first image on the page in January 2014. Instagram/grandmabetty33

The beloved Instagram celebrity Grandma Betty passed away on Saturday at the age of 80 after battling lung cancer. Her death was announced on her Instagram account with a photo of her dog Harley resting on the empty rocking chair she was often photographed sitting in.

“After a much needed night of rest, Grandma has come to peace with her battle of Lung Cancer," reads the caption accompanying the photo. "Although Grandma Betty is no longer physically with us, she will forever be in the hearts of the millions of people she touches every single day. Grandma Betty did not lose her battle to cancer, because her legacy she has left behind will inspire millions of people to #Smile, #BeHappy, and #StayHappy no matter what. The fight has ended. The battle is won.”

Betty Jo Simpson shot to social media fame over the past few months with an array of adorable photos posted on her account. The account was opened for the Indiana woman by her grandson, Zach Belden, following his grandmother’s cancer diagnosis, reports Richmond’s WRIC. The 18-year-old wanted to use the app to share and document his grandmother’s life.

Grandma Betty had over 684, 951 Twitter followers and posted a total of 201 photos before her death. From sitting on a motorcycle to donning a pair of boxing gloves and a cape, Betty’s photos showed her joy for life throughout her eight-month battle with lung cancer.