Weekly (Time Inc.). 2015-11-03 [2015-11-18]. (原始内容存档于2015-11-19). Schillaci, Sophie. Kelly Clarkson Featured on New Song After Canceling More Tour Dates. Entertainment
Chart Stats. [2013-02-24]. (原始内容存档于2012-05-30) (英语). Glenn Pillsbury《Damage Incorporated:Metallica and the Production of Musical Identity》羅德里奇(2006)ISBN