Kacey Musgraves, Katy Perry Collaborate on 'Wizard of Oz'-Inspired Song

Katy Perry and Kacey Musgraves became fast friends after discovering their mutual admiration for each other. The two singers will hit the road for a month while Musgraves serves as the opening act for Katy Perry’s Prismatic Tour, and they recently performed together for a taping of ‘CMT Crossroads.’ But that’s not all that they have in common.

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