专辑介绍：Stronger is the upcoming fifth studio album by American pop-rock, singer-songwriter Kelly Clarkson. The album is scheduled to be released on October 24, 2011 by RCA Records.  Clarkson began writing new material for the album in November 2009 while touring and and finished recording in February 2011. The release of the album was pushed back several times. The first single, "Mr. Know It All" premiered on a live webcast on August 30, 2011 and is available for purchase as a digital download from September 5, 2011.