Katy Perry and Lady Gaga. Friends? Rivals? Maybe the only time these pop divas have been mentioned in the same sentence ...

Every single Beyoncé tour gains acclaim, without question. Her tour supporting Cowboy Carter has been no different, with the ...

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

Katy Perry is bringing her Lifetimes Tour to the U.S. Wednesday, kicking off in Houston at the Toyota Center — and fans will get a chance to be a part of the interactive event.

Katy Perry is all set to kick off the U.S. leg of her Lifetime tour after wrapping up the concert series in Mexico City. On ...

Lady Gaga broke the record for the highest-attended concert by a female artist in history on May 3, drawing an estimated ...

During each event, fans can scan a QR code from one of her albums and vote on a song they want her to perform The US leg of ...