British pop star Robbie Williams married his longtime girlfriend, actress Ayda Field, in front of friends and family Saturday night at his home in Beverly Hills. About 75 guests looked on as the couple, who met in 2006, said their vows during a 30-minute ceremony, which was followed by a sunset reception. "At last, Rob is happy," the singer's father, Pete Conway, told Britain's News of the World. "That's what you want for your kids and this is the happiest I've seen him. Ayda is so beautiful and so delightful and so lovely and just so right for him. They are brilliant together."