A bikini-clad Katy Perry spent her Christmas Day hitting the beach in Hawaii with a few good friends. Katy was without husband Russell Brand, though she looked to be surrounded by loved ones. 2011 was another year of outrageous style for Katy Perry as she took her smash hit album Teenage Dream around the world including, most recently, a turn hosting SNL. Katy and Russell's demanding work schedules means a lot of time apart, though they have denied all rumors of trouble in their relationship. Russell and Katy got engaged two years ago on New Year's Eve, so perhaps they'll find a way to be together for that milestone.