"Sunday Girl" was written solely by Blondie guitarist Chris Stein. Stein recalled, "I wrote that one all by myself, but I was so nervous about having my own song, I asked [Debbie Harry] to put her name on it. ... We left [the credit] to me in the long run."
"Sunday Girl" was composed solely by Blondie guitarist Chris Stein. Stein admitted, "I wrote that one all on my own, but I was so anxious about having my own song, I asked Debbie Harry to put her name on it. ... We left the credit to me in the end."