Jessica Simpson performs in advance of her "Do You Know" album release in Sacramento

With her new album “Do You Know” scheduled to hit stores September 9th, Jessica Simpson is pulling out all the stops to make her transition to country music a success.The “Come on Over” babe gave a rousing concert in Sacramento, California last night (August 25), looking sexy in a lacy white top underneath a western-style plaid shirt with a pair of hip-hugging jeans and her usual cowboy boots.