Katy Perry brought all the glitz and glam at her Vegas residency, and some old-school Pop standards too. The ‘Roar’ hitmaker showcased her love for the classics, as she tackled a number of hits from the past in her setlist for the ‘Play’ Vegas residency. Perry also tested her chops by belting out a song … “Watch: Katy Perry Sings Whitney Houston’s ‘Greatest Love Of All’ At Her Vegas Residency”
