A Boston area girl who was known as Mrs. Justin Bieber for inspiring the pop star during her battle with cancer is dead.  Six-year-old Avalanna Routh died yesterday from a rare form of brain cancer, and family friend Sharon Wimmer says Routh's death is hitting hard.

Avalanna was a huge fan of Bieber, and her story gained national attention when she met her idol in person.  Bieber shared his sadness yesterday with a message on Twitter.