Beyonce Knowles visited rehab to prepare for her role in new film 'Cadillac Records'

The singer-and-actress visited a treatment clinic for people suffering from
addiction to learn about the drug problems experienced by US soul singer
Etta James, who Beyonce portrays in the movie.
Beyonce, 27, said: "I've never tried drugs in my life, so I didn't know
about it all. I learned a lot about myself."
Etta, now 70, became a music sensation in the 50s and 60s, and is said to
have been exposed to substance abuse from an early age after growing up in
the spotlight.
And Beyonce admits her preparation for the part also had a massive influence
on her new album 'I am... Sasha Fierce'.
The 'Bootylicious' singer explained: "It changed my art. It changed my way
of looking at everything, my approach to the songs I chose and the way I
sang.
"Before, I was still really insecure and scared and now I have the
confidence. It was like I had gone through therapy to something. I felt like
a whole new woman, ready to reveal me. The real me."