Justin Bieber has sparked speculation about underlying tensions with his mother Pattie Mallette after brushing off a very personal message from her this week. The 31-year-old singer responded bluntly to a post from his mother, who had shared a lengthy prayer for her son amid ongoing concerns about his health and wellbeing . Two weeks earlier, Pattie, 50, had posted several black-and-white images of Bieber alongside an emotional caption that read, “We’re cheering you on and praying for you