Credit: Pete Mariner/Retna/iPhoto

Think you have what it takes to be an Us Top Cop?

Write a snippy one-liner for this photo of Katy Perry, who paired blue Sergio Rossi slingbacks with a Jeremy Scott dress at the MTV Europe Awards in Madrid on Nov. 7.

Be sure to include your e-mail address before posting (it won't show up below), and a name you wouldn't mind seeing in the magazine.