Returning to her country roots seems to have done right by Jessica Simpson. The singer/actress, who released her debut country album Do You Know yesterday, has the most downloaded album on iTunes. "I'm not surprised," says a music biz insider to E! Online. "It's country, and it's Jessica. It makes sense." And in more good news, the album is expected to stay on top all week and across all music genres. Guess y'all like a down-home Jessica.