PORTLAND, OR. (CNN) - A Portland 11-year year old who suffers from a severe neurological disorder, only expresses emotion when she hears Justin Bieber songs. Family members say any time Megan Ham hears or sees Justin Bieber, she smiles and moves.
Even doctors can't explain it.
But whatever it is, her family is thankful.
Bieber has heard about Megan and says he'll make sure he meets Megan when his tour comes to Portland.