Continuing to branch out from her mainstay singing career, Beyonce Knowles was spotted looking fine at the big Hollywood premiere of her new movie “Cadillac Records.”The “Single Ladies (Put a Ring on It)” songstress arrived on the red carpet outside the Egyptian.

Theater last night (November 24) hamming it up in a black Dolce & Gabbana dress complete with fluffed-out sleeves and peep-toe heels.In “Cadillac Records,” Beyonce plays the role of legendary soul singer Etta James in a story about the 1950s music industry.

Chronicling the life of record executive Leonard Chess and Chess Records’ singers.And if “Cadillac Records” fares as well as expected, Beyonce will be adding even more money to her big 2008 earnings that helped garner her and husband Jay-Z the title of Forbes’ Top Earning Couple for 2008.