Mashup Monday: Katy Perry ‘Roar’ vs. Sara Bareilles ‘Brave’ [VIDEO]Mashup Monday: Katy Perry ‘Roar’ vs. Sara Bareilles ‘Brave’ [VIDEO]Katy Perry's new single "Roar" leaked over the weekend, and was immediately compared to Sara Barielles' "Brave." Some claim Katy plagiarized the whole song.Mandee MontanaMandee Montana