Lindsay Lohan has warned her younger sister to stay away from nightclubs if she wants to be a star.
The 'Mean Girls' beauty - who completed a two-month stint in rehab last year for alcohol and drug problems - is keen for aspiring actress Ali, 14, to avoid all the pitfalls she endured.
She said: "I've urged her to keep her head on straight. She needs to stay away from clubs! But I wish her the best of luck."
Ali - who recently admitted she was desperate to be famous in an interview with Teen Vogue magazine - is set to appear in a reality TV show with mother Dina.
Meanwhile, Lindsay insists she has recovered from her problems last year.
The 21-year-old star said: "I'm doing great. I'm really focused."
Lindsay recently bought a two-bedroom New York apartment so she can escape the paparazzi.
Speaking about the high-rise property, she told TV show 'Extra': "The security is fantastic here, which I think is really important. It's hard to have a private life and keep relationships and that sort of thing, but I had four days off from them recently in Los Angeles and they didn't follow me at all."
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