VIDEO : Orlando Bloom Brings Katy Perry To Celebrity Filled Party

Orlando Bloom and Katy Perry managed to meet up once again Saturday afternoon for a special kids' birthday party. This time, however, they brought along the actor's son Flynn for the winter outing. Orlando drove the "Firework" singer and his growing boy to Malibu where they attended the celebration for Robert Downey Jr..'s son Exton. While at the party, guests including Gwyneth Paltrow and Jon Favreau enjoyed an outdoor celebration that included balloons and an obstacle course for the kids.