Katy Perry O2 tickets are available to see the pop princess take to the O2 Arena stage for a huge live concert, as she brings her imperious stage presence to the famous London venue for what promises to be one of the live concert highlights of 2011. Katy Perry O2 tickets will enable her legions of London fans to see one of the biggest stars in the world, live in concert and live in London at the O2 Arena.