No Doubt, the eclectic Orange County band, was formed in by Eric Stefani and John Spence who soon recruited Eric's younger sister Gwen as co-vocalist. HD - No Doubt Live! Simple Kind Of Life (Acoustic) Gibson Amphitheatre Universal City, CA. Simple Kind of Life Lyrics: For a long time I was in love / Not only in love, I was obsessed / With a friendship that no one else could touch / It didn't work out, I'm. "Simple Kind of Life" is a song written by Gwen Stefani for No Doubt's fourth album Return of Saturn (). The song contrasts Stefani's desire to settle down .