Katy Perry sits down with USA TODAY reporter KiMi Robinson to talk her world tour and why she is excited to bring her young daughter along.

Katy Perry shared what fans can expect from The Lifetimes Tour in an exclusive interview with E! News: "There might be a ...

"I have a responsibility to the audience to give them that singalong, to create that moment," the pop star tells Rolling Stone of her world tour. "And bring out some nostalgia" ...