In November 2012 , Perry began work on her fourth album , '' Prism '' . She told '' Billboard '' , " I know exactly the record I want to make next . I know the artwork , the coloring and the tone " and " I even know what type of tour I 'm doing next . I 'll be very pleased if the vision I have in my head becomes a reality . " Although she told '' L'Uomo Vogue '' in June 2012 that she planned to have " darker elements " in '' Prism '' following the end of her marriage , Perry revealed to MTV during the 2013 MTV Video Music Awards that she changed the album 's direction after periods of self-reflection . She commented " I felt very prismatic " , which inspired the album 's name . " Roar " was released as the lead single from '' Prism '' on August 10 , 2013 . It was promoted at the MTV Video Music Awards and reached number one on the '' Billboard '' Hot 100 . " Unconditionally " was released as the second single from '' Prism '' on October 16 , 2013 , and peaked at number 14 in the United States
2013 MTV Video Music Awards
2013 MTV Video Music Awards
Katy Perry