The 6-year-old, known across the internet as “Mrs. Bieber” for being singer Justin Bieber’s #1 fan, died from an aggressive form of childhood cancer called AT/RT (an atypical teratoid rhabdoid tumor) yesterday.
“RIP Avalanna” trended throughout all of Wednesday on Twitter with people remembering the brave girl and encouraging greater cancer awareness. Justin took to his own Twitter to mourn, writing, “just got the worst news ever. One of the greatest spirits i have ever known is gone.”
Last year, aware of Avalanna’s fandom, Dana-Farber/Children’s Hospital Cancer Center threw a “wedding” for her to the pop singer, which included flowers, song, and a ceremonial cake. A friend of the family even created a Facebook page titled “Get Avalanna to Meet Justin Bieber” which eventually put the two in contact.
Avalanna’s passing sadly coincides with September’s Childhood Cancer Awareness Month. Her parents, Cameron and Aileen, have been rallying support on finding better treatments for the rare cancer—that has a cure rate of about 15%—ever since their daughter was diagnosed with it at just 9 months.
After many surgeries, chemotherapy, and stem cell transplant, and radiation, Avalanna made it well past the prognosis of AT/RT survival, which is only a year. However as time progressed it became more difficult for doctors to believe her case was within the curable 15% and cancer treatments were stopped about two months.
You can learn more about “Mrs. Bieber” and her struggle in this video here: