American Idol Season 7 winner David Cook put on a brave face as he resumed his tour just one week after his brother's death. Although he didn't address his tragedy directly, the American Idol winner had to take several emotional breathers during his return to the stage in Akron, Ohio, Friday night, according to the city's Beacon Journal newspaper. Halfway through the power ballad "Lie," Cook stopped and addressed the audience. "It's gonna be tough for me," he said. "I'm sorry. Do you mind if I sing a different song?" With my deepest sympathy David.