Justin Bieber's mum has reportedly gone into hiding as her fears grow for her troubled son.
A source close to Pattie Mallette allegedly told E! News: "As any caring mother would be, Pattie is genuinely concerned for Justin, and she has said in many interviews before that she doesn't have her head in the clouds and keeps in very close touch."
The 19-year-old was recently arrested for DUI in Miami, following on from a string of worrying incidents.
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