Anna Kostrzewska is a charismatic singer with a warm voice. She is an author of song lyrics and poems, as well as a composer and producer. Her music is full of jazz, smooth jazz, blues, bossanova, tango and alternative pop. For many years she has given concerts on both festival and club stages. She shared prestigious stages with such legends of the world of music as Tomasz Stańko or Vaya con Dios, presenting her own material, among others, in the Congress Hall in front of the audience of many thousands of people. Her songs are played by the Polish Radio 1, Trójka and Chilli ZET.