6-year-old 'Mrs. Bieber' dies due to brain cancer

Justin Bieber's diehard and probably youngest fan passed away on Wednesday morning, leaving behind her many teary eyes. The 6-year-old Massachusetts girl, who used to call herself "Mrs. Bieber," died due to complications arising from a rare kind of brain cancer. The girl, whose name was Avalanna Routh, attracted the world with her cute face, zing for life and her dedication to her superstar.

Routh was being treated at a Boston hospital for a rare type of brain cancer called teratoid rhabdoid tumor. After seeing her love for Justin Bieber, nurses and doctors at the Dana-Farber Cancer Institute, where Routh was being treated, arranged a pretend wedding for her with Bieber. After her craze for the young singer was showcased on the internet, Bieber himself flew in his young fan and spent few hours with her in New York.

Routh's family announced her death on Twitter. According to a report by eonline.com, the tweet went as follows: "Oh Avalanna, the brightest star — you took our hearts with you, our greatest Love."

During the pretend wedding with Bieber, Avalanna held a multi-colored bouquet of flowers and wore a T-shirt with "Future Mrs. Bieber" written on it. She then stood next to Bieber's portrait under a banner which read "Just Married." The whole pretend wedding was filmed and later put up on the internet.

Avalanna came to be known as "Mrs. Bieber" on the internet, and soon she was all over the web. Her love for the singer and dire health state prompted a social media campaign to help her meet Bieber.

The singer later arranged for "Mrs. Bieber" to meet him in New York, and she was flown there just to spend a few hours with her superstar. Routh and Bieber spent a couple of hours together, and after the meeting ended, the singer tweeted that the whole experience was very inspiring for him.

After learning about Avalanna's death, Bieber took to Twitter to express his grief over the loss of such a precious child. "just got the worst news ever. one of the greatest spirits i have ever known is gone," Bieber tweeted. "please pray for her family and for her."