Katy Perry is singing the praises of fellow pop superstar Lady Gaga after catching her brand new tour. The "Firework" singer ...

Katy Perry says she's OK despite the intense online hate she's faced, and instead is focused on healing as she thanked her fans in a sweet note.

The singer opens up about his latest album, his viral single “Sally, When the Wine Runs Out,” and living life on and off the ...