( CNN ) -- Actress Mackenzie Phillips reveals she had a long-term incestuous relationship with her famous father , musician John Philips , in a tell-all memoir , according to People.com , which obtained an advance copy of her book . Actress Mackenzie Phillips reportedly reveals a family secret to Oprah Winfrey . Phillips , the 49-year-old former child star and daughter of the Mamas and the Papas founder John Phillips , says she had sex with her father the night before she was to marry Jeff Sessler , a member of the Rolling Stones entourage , in 1979 , according to People.com . `` On the eve of my wedding , my father showed up , determined to stop it , '' writes Phillips , who was 19 at the time and a heavy drug user , according to People.com . `` I had tons of pills , and Dad had tons of everything too . Eventually I passed out on Dad 's bed . '' Phillips , best known as Julie Cooper on the sitcom `` One Day at a Time , '' says the sexual relationship became consensual as her life began to spiral out of control . During her time on the hit CBS comedy , which ran from 1975 to 1984 , she battled drug addiction and underwent drug rehabilitation . She later was fired from the show in 1980 because of her drug abuse . Watch Phillips discuss her arrest » . Eventually , she and her father went to rehab together and she later toured with him in a band called the New Mamas and the Papas , according to People.com . `` I was a fragment of a person , and my secret isolated me , '' she writes , according to People.com . `` One night Dad said , 'We could just run away to a country where no one would look down on us . There are countries where this is an accepted practice . Maybe Fiji . ' `` Phillips will reportedly unleash the secret she has kept to herself for 31 years in an interview on `` The Oprah Winfrey Show '' scheduled to air Wednesday . Phillips ' book , `` High on Arrival , '' comes out the same day . Phillips has led a troubled life that has included substance abuse and a 2008 arrest at Los Angeles International Airport on suspicion of cocaine and heroin possession . She later pleaded guilty to one count of cocaine possession and was ordered to a drug rehab program . The interview features Phillips discussing the time she spent hiding in her home , compulsively purchasing items from a television shopping channel as well as the events surrounding her arrest . In a promotional clip for `` The Oprah Winfrey Show , '' Phillips also says her father shot her up with drugs . John Phillips , who died in 2001 , had a well-documented drug problem and was convicted of drug trafficking in 1981 . He told many stories of his drug abuse in his memoir , `` Papa John . '' Mackenzie Phillips also tells Winfrey about an encounter she purportedly had with rock ' n ' roll legend Mick Jagger . `` One Day at a Time '' co-star Valerie Bertinelli also appears on the Winfrey show in support of Phillips . Phillips ' career as an actress took off when , as a teen , she performed the role of Carol Morrison in the 1973 film `` American Graffiti . '' In the late 1990s , her career experienced a revival when she began co-starring on `` So Weird , '' a Disney Channel program .
NEW : John Philips says she slept with Mackenzie Phillips the night before her wedding . NEW : Mackenzie Phillips says relationship grew consensual ; father proposed moving to Fiji . The former child star has led a troubled life . She was arrested in 2001 on suspicion of drug possession .