Eccentric musician and practical joker Robbie Williams arrives in LA with his girlfriend Ayda Field Friday morning after causing a stir on the radio when he proposed to her on the air. Though he and his publicist have dismissed the proposal as a joke and Field arrived in LA without an engagement ring on her finger, Williams’ mother confirmed the engagement and said that “they’ve been together for nearly three years, so it’s about time.” Is this a big step for the happy couple or just a trick played on hopeful fans and eager media outlets?