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 fans have been channeling some of the singer's most iconic looks while attending her Lifetimes Tour. The concert series, in support of Perry's latest album, '143,' kicked off in Mexico City in April and will travel across the globe through the end of the year.

Katy Perry arrived at her New York City stop for her Lifetimes Tour and took the stage at Madison Square Garden on Monday, August 11.The 40-year-old popstar performed to a sold-out stadium