Kawalek Kulki

Kawałek Kulki (Piece of a Ball) is a Polish band, based in Wieprzyce. Its members are Magdalena Turlaj (violin, vocals), Blazek Krol (guitar, vocals), Macio Parada (bass), and Jacek Szmytkowski (drums).

Source: http://www.last.fm/music/Kawałek+Kulki/+wiki