""My December", in its debut, not only was one of the best selling albums of the week, but sold faster than Clarkson's previous album, "Breakaway" (which peaked at number three on the U.S. "Billboard" 200 albums chart).The album debuted at number two in the United States with sales of approximately 291,000 copies — a mere 6,000 copies less than Clarkson's debut hit "Thankful" sold in its first week.