Actress and rock heiress Mackenzie Phillips has finally kicked her lifelong addiction to drugs, and will show off her sobriety on the new series of reality show Celebrity Rehab With Dr. Drew.

The 49 year old, whose father was Mamas and the Papas star John Phillips, will appear on the show as a sober coach, less than a year after she was last arrested for cocaine possession and forced to start her 10th stint in rehab.

According to TMZ.com, Phillips has turned her life around and all remaining drugs charges against her will be dropped once she completes a 180-day drug diversion program.

She will replace Gary Busey, who was addiction specialist Dr. Drew Pinsky's last sober coach.

Her duties will include helping a roster of celebrity addicts stay on the straight and narrow.

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(This news article provided by World Entertainment News Network)