Silence Marshmello feat. Khalid Download 'Silence' on iTunes
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Pop's Rich List: 14 Of The Most Valuable Stars In Music
From the release of her 3D concert movie to fresh sales of new album 'Prism', Katy's not been slowing down when it comes to earning the big bucks. And with her 'Prismatic' tour just around the corner, things will be looking EVEN rosier this time next year.