What’s behind celebrity transformations?

Posted at 8:28 AM, Jan 30, 2015
and last updated 2015-01-30 08:28:05-05

(PIX11)-- This week, Justin Bieber made an apology to his fans online and Bruce Jenner is said to be making a docu-series on his "new journey."

Dr. Jeff and Valerie Greenberg discuss the motivation behind celebrities to change for the better--or for worse.