CP photos by Jake Mysliwczyk
Katy Perry on stage at PPG Paints arena on Fri., Sept. 22.
Katy Perry, the singer-songwriter known for such hits as "I Kissed a Girl" and "California Gurls," brought her "Witness: The Tour" to Pittsburgh last night. Here are City Paper
photo intern Jake Mysliwczyk's photo highlights from Perry's show at PPG Paints Arena.