There are more than one artist by this name. 1.) A Swedish dance singer. a.k.a. Petra Marklund 2.) A progressive jazz / rock band from ex-Yugoslavia. 3.) An emo band from the 90's from California. 4.) A Doom/Death Metal band from Sweden 5.) Screamo band from Elkton, Maryland. 6.) A short-lived seventies rock band from Amsterdam, The Netherlands 1.) Petra Linnea Paula Marklund better known as September (born in Stockholm, Sweden on 12 September 1984) is a Swedish dance singer.