Lady Gaga performed “Summerboy” at her Mayhem Ball tour opener in Las Vegas Wednesday — its first live performance since 2007.

After making a big splash at Coachella and coming to Brazil back in the spring, Lady Gaga launched her global Mayhem Ball tour at T-Mobile Arena in Las Vegas Wednesday night. The career-spanning set ...

Lady Gaga revives rare hits, expands her Coachella opera house, and shines with 'Mayhem' at her Las Vegas tour opener of the Mayhem Ball ...

Lady Gaga kicked off her "Mayhem Ball" tour at T-Mobile Arena in Las Vegas on Wednesday, July 16th with a four-act, 27-song set.

The ‘Mayhem Ball’ has finally dropped. Four long months after releasing her seventh studio album “Mayhem,” Lady Gaga launched ...