Heading off around the globe with our four fashion icons. Three of the beautiful ladies were showing their style off in the UK this week. Katy in London for the movie premier Part of Me. While Rihanna and Jessie were performing at T in the Park and the Wireless Festival. Miss Gaga was still touring Australia with her final concert in Perth on Sunday. The Diva's were channeling a ballerina vibe this week with the dress Katy wore to the premier in London and the high kicking that Jessie has been putting into her shows this week. Katy Perry stepped out in a dress from the Marchesa Fall 2012 collection. The white sleeveless dress was very reminiscent of a ballerina, complete with a tulle skirt and detailed gold embroidery. The shoes were Jimmy Choo ‘Lauren’ diamanté-and-suede strappy sandals.