No Kidding is a phonographic debut of the BeFour vocal quartet. It showcases eighteen unusual arrangements of well-known pieces from various musical styles. From traditional folk songs, to John Dowland, to Burt Bacharach, Zoltán Kodály or Billy Joel and The Beatles. Variety, outstanding arrangements and a beautiful edition make this album an interesting proposal for music lovers looking for quality entertainment in the best sense of the word in a classic setting. The BeFour vocal quartet was established in 2011. Thanks to it's unique authenticity and passion, it has won a broad audience. It performs in an unchanged composition: Karolina Piesik, Kamila Tracewska-Mikolajczak, Anna Komendzinska, Brygida Sawicka-Stepinska, performing mainly a capella vocal music.