Whitney Houston in Rehab for Drug and Alcohol Treatment

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Whitney Houston has entered an out-patient rehab program for drugs and alcohol treatment.

The 47-year-old star's rep tells ET, "We can confirm that Whitney Houston is currently in an out-patient rehab program for drug and alcohol treatment. Whitney voluntarily entered the program to support her long-standing recovery process."

Houston first entered rehab back in 2004, and received further treatment in 2005. In spring of 2010 she had to sideline her world tour due to reported allergies that put her in the hospital.

In 2009, Houston told Oprah she is no longer on drugs but at times does have a desire to use again. "I have to pray it away," she said of her temptations.