marta markiewicz (born 13 june 1989), better known as sarsa or sarsa markiewicz, is a polish singer, songwriter, and record producer. she first achieved mainstream attention due to her 2015 single "naucz mnie" (teach me), which occupied the number-one position on the polish singles chart for six consecutive weeks, and was certified diamond by the polish society of the phonographic industry (zpav). her debut studio album "zapomnij mi" was released on 28 august 2015.