Cameron Diaz has opened up about the joys of being a new mother, calling her and husband Benji Madden’s daughter Raddix the "best thing that ever happened”.On Wednesday, the actress appeared on The Tonight Show Starring Jimmy Fallon, where she revealed that she has been enjoying every moment with the couple’s six-month-old daughter, even in quarantine. “Heaven, it’s been heaven, Jimmy,” the 47-year-old said of the last few months.