Any Christian who attends to popular culture knows that Justin Bieber is a phenomenon unique to the current teen generation: a social media-created super star. The teen's rise to fame began with a couple of videos his mother uploaded to YouTube, and his fans primarily relate to him through Facebook and Twitter. But what many adults may not know is that Justin is also a devoted Christian and has used his fame to give back to a number of charitable causes. In her new book, Belieber! Fame, Faith, and the Heart of Justin Bieber, award-winning religion journalist and author Cathleen Falsani explores Bieber's faith, family life, and the impact the singer is having on a generation of teens. I invited Falsani to share her thoughts on the origins of the book and what attracted a 40-something mom to want to write about the newest pop idol.