On August 30 , 2011 , Clarkson hosted a special live webcast on her website to premiere " Mr. Know It All " . Clarkson began promoting the song worldwide for the first time at the '' Stars for Free '' music festival in Berlin , Germany on September 10 , 2011 . She then performed it on '' The Tonight Show with Jay Leno '' on September 20 , 2011 , at the iHeartRadio Music Festival in Las Vegas , Nevada on September 23 , 2011 , on the Australian television series '' The X Factor '' , and at the 2011 NRL Grand Final at the ANZ Stadium in Sydney , Australia on October 2 , 2011 accompanied by three hundred dancers , which marked her first appearance at the event in 8 years since the 2003 NRL Grand Final . On October 5 , 2011 , Clarkson previewed the final version of " Stronger ( What Does n't Kill You ) " and " You Love Me " on her website to positive reviews from music critics . '' Billboard '' commented : " The track is a sonic departure from first single ' Mr. Know It All ' and may give an indication of the range of material on '' Stronger '' . " Clarkson then promoted the album at the thirteenth season of '' Dancing with the Stars '' on October 18 , 2011 . Clarkson also performed " Mr Know It All " at the eighth series of British television series '' The X Factor '' on October 23 , 2011 , at the 2011 American Music Awards on November 20 , 2011 , and at the German television series '' X Factor '' on November 1 , 2011
2011 American Music Awards
American Music Awards of 2011
Stronger (Kelly Clarkson album)