While Bruce Willis hosted, Katy Perry was the musical guest on this week’s “Saturday Night Live.”

First, she performed her latest hit "Roar":

 After performing “Roar" in a leopard dress, Perry then sang “Walking on Air” dressed as a school girl: 



See Also:

Bruce Willis Has A 'Boy Dance Party' During Football Game On 'SNL''Weekend Update' Slams Bruce And Kris Jenner Divorce On 'SNL'Paul McCartney And Jimmy Fallon Switch Terrible Accents

SEE ALSO: Bruce Willis Plays The Harmonica In His 'SNL' Opening Monologue

MORE: Bruce Willis Has A 'Boy Dance Party' During Football Game On 'SNL'

MORE: 'Weekend Update' Slams Bruce And Kris Jenner Divorce On 'SNL'