Justin Bieber's drug use got so bad his security were forced to check his pulse at night

Justin Bieber [Courtesy]

Justin Bieber has opened up about some of the lowest points in his life in an eye-opening interview. The 27-year-old superstar, who became a household name when he was just 13-years-old, has shared an insight into his drug use during the height of his fame.

Although it may appear as though the Baby singer has lived a glamourous and perfect life full of fame and fortune, Justin told GQ Magazine that when he looks back on his career, that couldn’t be further from the truth. Looking back over the past five years of his career, Justin admitted that times were ‘pretty dark’ for him.