I think she co-writes, at least some of her songs, I think she has a proffessional co-writer like Britney does, who basically does most or all of the work but only gets half credit. She has a full time band too, so maybe they write the stuff, i dont know.
www.gnr.com.ar
http://www.izzystradlin.tk/
http://www.izzystradlin.tk/