Journalist and biographer Nick Tosches. His new biography is "Dino: Living High in the Dirty Business of Dreams," (by Doubleday). It's about singer Dean Martin but it also looks at the culture that created him. He was part of the mob culture, and Hollywood's "Rat Pack." The book also delves into the reasons for the infamous breakup between Dean Martin and his comedy partner, Jerry Lewis. Dean Martin is now 75 years old.