Whitney HoustonMary J Blige is deeply saddened by Whitney Houston’s drug dependence.

Houston, who is addicted to crack cocaine, has been photographed in squalid conditions and is thought to be battling debts. The drugs apparently cause her to hit herself until she’s bruised, thinking she’s attacking “demons”.

“I’m saddened by the whole thing,” Mary told the Sun.

“Whitney is technically the best vocalist in the business.”

Mary has struggled with alcohol problems herself and believes that Whitney has the strength to overcome the addition.

“Whitney will come through. I have every faith that she will make a breakthrough. I’m just praying for her now.”