Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. For years, Katy Perry reigned supreme as one of the world’s hottest ...
Many of us love the slew of bops that Katy Perry put out in the early 2000s, like "Hot N Cold," "California Gurls," and, of course, "Roar." Since then, the "American Idol" judge has continued churning ...
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