During an interview for the December 6, 2006 issue of Australian music magazine Inpress
, Stefani said: "'Wonderful Life' is the one song I had leftover from the last record; it's one of my favourite songs. It was written for my... I guess he was my first kissing-love who I had in Ninth Grade - I guess I can say his name, Matt Ellej. He actually passed away and I wanted to write a song for him, and I wrote the song 'Wonderful Life.' The thing that's really crazy about the whole thing is - because obviously I hadn't seen him for a really long time, and I loved him and he changed my life so much - he's the one that turned me onto groups like The Cure and Depeche Mode. He was really into it; I mean he was Robert Smith - he had the whole big hair and everything. He was super into Depeche Mode, and so when Martin Gore played on the record I told him about Matt and how much he loved them. I mean, if he knew that... I mean, how beautiful is that? To have a song I wrote for him, and then to have his idol play on it - it was quite a meaningful experience for me."
Vitor - Blumenau, Santa Catarina, Brazil