We told you earlier this year about the little 6 year old Merrimac, Massachusetts girl, Avalanna Routh. She called herself Mrs. Bieber, touching the pop star's heart so much that he set up a personal Valentine's Day "date" with her in February.  She also appeared on stage with Bieber in June.  Some sad news to report today. Little Avalanna lost her battle with brain cancer Wednesday morning, a disease she struggled with for most of her short life.

Bieber tweeted, "Just got the worst news ever. one of the greatest spirits i have ever known is gone. please pray for her family and for her. RIP Avalanna. i love you."  Ever since we first reported on his superstar treatment of this poor little soul, I have nothing but respect for him. The kid is a class act. There are far too many sports, pop and movie stars that are twice his age that could learn a lesson from him about priorities. God bless little Avalanna and her grieving family.