Swedish singer and songwriter, born in Stockholm on 12 September 1984.

Petra Marklund is internationally best known as dance-pop artist September, mainly produced by [a=Jonas von der Burg]. Her tracks "Satellites" and "Cry For You" made it to respectively #8 and #1 on Billboard. The latter was nominated for the Government's Music Export Prize 2008 in Sweden for selling over a million copies worldwide.

In homeland Sweden, Petra had her biggest hit in 2010 with a cover of [a=Petter]'s "Mikrofonkåt". The track entered the Swedish charts at #1, holding the spot for 11 consecutive weeks, and was certified 8x Platinum.

Having performed as September since 2003, Petra released her first Swedish album in 2012 under her own name, to distinguish from September.