Katy Perry dresses up in Alice + Olivia at the launch of her 'Killer Queen' fragrance in Berlin

Katy Perry launched her latest 'Killer Queen' fragrance in Berlin, and wore an Alice + Olivia Fall 2013 plaid attire of a red and black collarless jacket and pleated skirt. The singer also wore a Dolce & Gabbana blouse with a black bow, knee-high socks and Christian Louboutin 'Resillissima' booties. A red lip completed Katy's look for the event.