>> i woke up that morning, my >> her high wattage marriage to gavin rossdale the lead singer of the band bush exploded after 13 years. >> at that time everything was like, i had no skin, i was so raw. nobody knew what was happening i had this big secret. >> the 46-year-old rocker, fashion icon and mother of three young boys suddenly found herself at a crossroads. >> i was down all the way. like you don't go down lower than that. you know what i mean? >> rock bottom. >> i was so embarrassed, you know what i mean, like, wow, i have to tush this into something. like i can't go down like this. if i can do music everything will be okay. >> but music hadn't come easily for stefani of late. a long, frustrating bout with writer's block left her shake glenn what was it like going into the studio for the first time? >> when i walked in there i said, i don't care about the charts, the hits, the style of music. i just want to tell the truth of me, whatever it is, i want to write and i want it to be coming from me. >> her misery tuned out to be her muse. one a mart of weeks she had written more lyric