“Prism,” Katy Perry’s new studio album, is out today. The album is the follow-up to 2010’s smash LP “Teenage Dream,” which debuted at No. 1 in eight countries and spent more than two years on the Billboard 200. “Prism reveals Katy Perry at her most empowered,” said Billboard and The New York Times noted, “Katy Perry is the most potent pop star of the day.” The first single from “Prism,” “Roar” became Katy’s 10th #1 Top 40 track after debuting at #1 on iTunes in 68 countries with 557,024 downloads in the US alone during its first week of release, the biggest digital song sales week of 2013. In a mere six weeks, it also reached the top of the Adult Top 40 (HOT AC) chart, the quickest climb to #1 since the chart debuted in 1996. The official “Roar” video, directed by Grady Hall and Mark Kudsi, has racked up more than 130 million views. The follow-up single, “Unconditionally,” went to radio last week.