It seems Benji Madden has confirmed he and Cameron Diaz are officially in a relationship. During an interview with a U.K. radio station this week, the 35-year-old Good Charlotte rocker and his brother Joel Madden were asked about their private lives. Benji said,”We’re lucky guys!” Benji’s coy comment comes just a few weeks after he and Diaz seemingly confirmed their relationship by walking hand in hand out in L.A. And just one day later.