Pop princess Katy Perry continued her pre-album release style streak sporting a curve-hugging Dolce & Gabbana mini with sexy spiked booties by Ruthie Davis. Katy rocked the Fall 2010 footwear while stopping into a Sydney boutique yesterday for some retail therapy. We’re sure Katy’s pal Rihanna will be green with envy knowing that Katy got her hands on these first. If you can swing the $1,395 price tag, the Kitson-exclusive shoe is now available for preorder!