Mario Vazquez Quits 'American Idol' :Nikko Smith Returns

Vazquez cites 'personal reasons' for his departure.

One of the favored finalists in this year's "American Idol" final 12, Mario Vazquez, abruptly took himself out of the running over the weekend with little explanation.The departure of Vazquez paved the way for one of the men dismissed last week, Nikko Smith, to jump back into the competition. Smith was ousted along with Travis Tucker, but because he received more votes than Tucker, he was the judges' pick to return.The competition has been whittled down to six men and six women.