Singer-songwriter Justin Bieber has raised concerns among fans about his marriage to Hailey Bieber after unfollowing her on Instagram, as reported by Mirror.co.uk. Despite the couple welcoming their first child, Jack Blues, last summer, rumors of a potential split have been circulating for months. A search for Hailey’s account under Justin’s following list reportedly shows "no users found," while Hailey, 28, continues to follow her husband