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Lisa Marie Presley in rehab

ShowbizBy Sunday World
Lisa Marie Presley in rehab

Lisa Marie Presley has checked into rehab.

The 48-year-old star - who is the daughter of the late Elvis Presley and his ex-wife Priscilla - is reportedly seeking treatment for a painkiller addiction at the exclusive Hills Treatment Center in Los Angeles, which costs $400,000 a month.

A source told Us Weekly magazine: "She's doing OK but needed to get this under control."

Lisa Marie has previously spoken openly about being addicted to drugs and alcohol as a teenager and admitted she was shocked to still be alive.

Speaking in 2003, she said: ""[I used] cocaine, sedatives, pot and drinking -- all at the same time. I just couldn't be sober.

"I don't know how I lived through it."

At the time, she credited Scientology for her recovery.

It has been a difficult time for the singer, as she recently filed for a legal separation from Michael Lockwood after 10 years of marriage, citing irreconcilable differences.

She initially filed for divorce, but then changed the status, though the reasons why are not clear.

Lisa Marie has requested full custody of the couple's seven-year-old twin daughters, Finley and Harper, and asked for her estranged spouse to receive monitored visitation. They already have a postnuptial agreement in place to divide their assets.

Lisa Marie also has children Riley Keough, 27, and Benjamin Keough, 23, from her previous marriage to Danny Keough.

She was also married to the late Michael Jackson from 1994 until 1996, before going on to wed Nicolas Cage in 2002.

That romance hit the rocks two years later in 2004, she met Michael shortly afterwards and married him in a traditional Japanese ceremony in Kyoto, Japan.