September 13, 2011 Photos | MTV Buzzworthy: What If Justin Bieber Grew A Mustache? Edit Delete Tags Autopost MTV Buzzworthy: What If Justin Bieber Grew A Mustache? Related Artists Justin Bieber Source: http://www.mtv.com/photos/?fid=1659456Shannon Elizabeth Shannyn Sossamon Shiri Appleby Sienna Guillory