Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. – July 2015

Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. - July 2015-1

Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. – July 2015

Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. - July 2015-2

Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. - July 2015-3

Katy Perry With Fans at Her Prismatic Concert in Washington, D.C. - July 2015-4