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

Katy Perry loves sharing her woman’s world with Lady Gaga. In the crowd at Mother Monster’s ¡Viva La Mayhem! concert in Mexico City Saturday (April 26), the “Firework” singer was one of ...

Lady Gaga was the latest artist to experience an onstage glitch. The actress and singer has been on tour over the past weeks, ...

Aside from the singer's small slip, the Mayhem Ball tour has kicked off without a hitch. Gaga opened the trek July 16 in ...

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 took a tumble during her performance in Las Vegas as part of The Mayhem Ball tour but she quickly styled it out and ...

Among the concert tours hitting Seattle over the next three weeks: Lady Gaga, Death Cab for Cutie, Katy Perry, Paul Simon and ...

Katy Perry joined in on the Viva La Mayhem fun! On Monday, April 28, the "Teenage Dream" singer shared pictures and videos from Lady Gaga 's Sunday night concert in Mexico City at Estadio GNP Seguros.