Perry's new single, Roar, sold 557,000 digital copies, more than twice as many as Lady Gaga's Applause, which sold 218,000 digital downloads You can save this article by registering for free here. Or ...

Looks like we’ve got a good old fashioned diva-off on our hands. Thanks to some Internet shenanigans and the fickle finger of fate, two brand new singles from superstar divas are now for sale. Katy ...

Perry's "Roar" and Lady Gaga's "Applause"' scale the Pop Songs airplay chart, helping set the stage for their expected lofty ranks on this week's Hot 100. By Gary Trust In its first full week of ...

If not the most unique female artists of their generation, Katy Perry and Lady Gaga have made their way to the top of the ranks, sending fans everywhere into a frenzy with the release of their hits ...

Katy Perry's new single Roar is off to a great start after being released last week, expecting to sell a whopping 450,000 copies in it's first week, Billboard reports, leaving Lady Gaga's comeback ...

Early indications on Monday suggested that each pop diva’s song might sell more than 400,000 copies the first week. Perry’s single has a slight advantage given that “Roar” was released on a Monday, ...

“Roar” will easily give Perry the biggest sales week of the year for a song, and likely her largest sales week. At the present, her largest week was earned by “Firework,” which sold 509,000 downloads ...