Those who signed support background checks. — -- More than 150 entertainers and executives, including Katy Perry, Lady Gaga and Billy Joel, have signed a special “Open Letter to Congress ...

Katy Perry fans have been channeling some of the singer's most iconic looks while attending her Lifetimes Tour. The concert ...

Perry has been loping around the world on this tour for four months. Her Philadelphia stop was the 33rd city on the Lifetimes Tour, with 39 to go before wrapping in Abu Dhabi at the end of the year.

Katy Perry has teased that she will be embarking on a 'massive tour' by the end of the year, but fans are skeptical.

Lady Gaga’s Mayhem Ball has officially hit stages across the world, from Coachella to her record-breaking Copacabana show ...

Lady Gaga's Mayhem Ball is worth repeat visits if you can get 'em, as our critic explains in a commentary on what makes the ...

The Pittsburgh event will feature performances by pop star Katy Perry and rapper and producer D-Nice. Oprah Winfrey, Lady Gaga, The Roots, DJ Jazzy Jeff, Fat Joe and Ricky Martin will appear or ...

The Dinah was founded by Mariah Hanson in 1991, and has hosted concerts by stars such as Lady Gaga, Katy Perry, Pat Benatar and The Pussycat Dolls.