Gaga is now tied for the most diamond-certified singles among women, as both Katy Perry and Cardi B have ... Behind that cut come “Dark Horse” at 11-times platinum and “Roar,” which ...

Opinions expressed by Forbes Contributors are their own. Hugh McIntyre covers music, with a focus on the global charts. Katy Perry, despite not having released new music recently, continues to ...

making Perry the first artist to have three Diamond-certified singles in the country, following "Firework" and "Dark Horse." ...

Who is Katy Perry? As she reminded ... like the insistent "Roar," the electro-trappy "Dark Horse," and other Perry megahits (including all those Diamond-awarded cuts) to life.

Perry performed a medley of her biggest hits, including “Roar,” “Firework,” and “Dark Horse” — all while wearing a mix of workout gear and lingerie. It’s no secret Katy Perry loves ...