Beyoncé Knowles as Etta James Photo by: Eric Liebowitz / Sony
Beyoncé Knowles Is a 'Fierce' Etta James
Her next album, out Nov. 18, might be entitled I Am... Sasha Fierce, but Beyoncé Knowles, 27, has another alter ego these days: blues veteran Etta James.

Knowles went blonde to portray the singer (best known for the 1961 classic "At Last") in the film Cadillac Records, hitting theaters Dec. 5.

See the trailer here.

The musical drama, which centers on the influential sound developed by Chess Records, also stars Oscar-winner Adrien Brody as the label's co-founder Leonard Chess (known for rewarding his top acts with a shiny new Cadillac) and Jeffrey Wright as blues legend Muddy Waters.

Seven-time Grammy-winner Knowles is generating Oscar buzz for her portrayal of James, now 70, who battled a heroin addiction.
– Ivory Jeff Clinton
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