There are at least three artists called September: 1) Swedish singer Petra Linnea Paula Marklund aka September. 2) Yugoslav/Slovenian jazz rock band from the 70s. 3) 90s emo/post-hardcore band from San Jose, California. 1) Petra Linnea Paula Marklund better known as September (born in Stockholm, Sweden on 12 September 1984) is a Swedish dance singer. Her mother is Slovenian and has a musical past and her Swedish father is a professor in space physics. Read more on Last.fm