Matt Cardle and many more
by Gaby Whitehill | Photos by WENN
Matt Cardle challenged the cliche that it's just wild rock stars and rappers who battle with drug addiction, as he entered a rehab clinic on 29 December 2013 to overcome his addiction to prescription drugs.
However, Cardle isn't the only unlikely musician to admit drug abuse. Take a look at some surprising drug confessions from the most unbelievable stars, including opera darling Katherine Jenkins and squeaky clean Justin Timberlake.