Katy Perry is in town, did you know? Pop was front and centre on the red carpet on Saturday night for the Australian premiere of Katy Perry: Part of Me, quizzing the pop star of her Aussie fans. We have some serious time for Ms Perry's crucifix-embellished Versace cocktail frock and ever-popular Un Bout Louboutins, but think that the celeb-filled red carpet deserves a little attention, too. Ricki-Lee Coulter looked sexy in slick strides by one of our favourite local labels Watson X Watson which she teamed with a Viktor & Rolf shirt and Isabel Marant heels, Ruby Rose got cute in a cartoon-ish ensemble and The Voice's Emma Birdsall worked her signature retro style in an elegant LBD by LP33. Snoop who wore what on Katy's pink carpet. . .