MAVRIXONLINE.COM - Global pop star Katy Perry dons several eye-catching colorful costumes including peacock feathers and a cat-like jumpsuit to kick off her California Dreams UK tour at Hammersmith Apollo. Performing for a sold out crowd, mostly of teenaged girls some of which reportedly camped out the night before, Katy laughed and joked with the audience and also paid tribute to St Patricks Day, wearing a green hat thrown onstage. Towards the end of the concert she asked fans to join her on stage to dance, which they did with utter delight. Katy seemed to really be enjoying herself in England, where her husband Russell Brand is from, and changed outfits after almost every song. London, UK. 03/17/11. Fees must be agreed for image use.