Katy Perry released a new single, “Roar,” over the weekend. While the song was originally scheduled to premiere today, it leaked on the internet on Saturday morning. In response, Perry’s label moved ...

In The Number Ones, I'm reviewing every single #1 single in the history of the Billboard Hot 100, starting with the chart's beginning, in 1958, and working my way up into the present. Book Bonus Beat: ...

The students hope their videos will win them a Katy Perry "GMA" concert. Oct. 14, 2013— -- intro: After Katy Perry put out a call for high schools students to submit their own rendition of her ...