With a body like hers, it's clear Katy Perry doesn't eat too much pizza.
when it comes to fashion the 29-year-old pop star has gone crazy for
the pepperoni pie - wearing the pattern on her onesie after her
Philadelphia concert on Tuesday night.
And it certainly made an impact as hundreds of fans mobbed the star.
They gathered after the Dark Horse singer made an announcement on stage, stating that she would come to the top of the Philadelphia Museum of Art steps to meet her fans.