Lech Andrzej Janerka, born on May 2, 1953, in Wrocław, Poland, is a Polish rock singer, bassist, composer, and lyricist. In the late 1970s, he began performing with his wife, Bożena Janerka, at student music festivals. In 1979, he founded the new wave and post-punk band Klaus Mitffoch, serving as its leader and recording the group's self-titled album Klaus Mitffoch (1984), which became regarded as one of the most important albums in Polish rock history. After leaving the group in 1984, Janerka began a solo career and released Historia podwodna (1986), followed by albums including Piosenki (1989), Ur (1991), Bruhaha (1994), Dobranoc (1997), Fiu fiu… (2002), and Plagiaty (2005). Fiu fiu… earned him Fryderyk Awards for Author of the Year and Alternative Album of the Year. In 2011, Janerka received the Officer's Cross of the Order of Polonia Restituta for his contributions to Polish culture. After an 18-year gap between studio albums, he released Gipsowy odlew falsyfikatu (2023), which earned five Fryderyk Awards in 2024, including Artist of the Year, Alternative Album of the Year, and Song of the Year for Dupa jak sofa.