By Aili NahasOriginal Source: people.comBilly Bush is one proud pop.The former Today show host is opening up about his 19-year-old daughter Josie, who will celebrate three years of sobriety Friday.“It’s a hero’s journey,” says Bush, 46, in this week’s issue of PEOPLE, on stands Friday. “I watch her and I’m blown away by the strength of character she has.”Initially, Bush, who is also dad of 13-year-old Lillie and 17-year-old Mary with wife Sydney, says he was...click here to continue reading