@lauraleal045 The first couple things that came up off the top of my head were that he started a band Sweet something when he was a teen (can’t remember off the top of my head the exact name) having been inspired by bands like The Beatles, The Ramons, Van Halen, etc. before eventually becoming the Green Day we know now. Billie is the writer, lead vocalist, and plays guitar as well in his band and their popularity helped inspire some other bands I liked growing up like Sum 41, ATL, etc. I can’t remember exactly when but it was somewhere around 2011-12 that he had an incident at a Music Festival revolving around substance abuse before seeking treatment, having dealt with it for a long time. I know that “Wake Me Up When September Ends” was dedicated to his late father, which is one of my favorite songs along with “Basket Case”, and “Holdiay”.