Bill Callahan hosted a guest show on 10 September 2020. Bill Callahan has been played on NTS over 40 times, featured on 42 episodes and was first played on 17 December 2013.

Bill Callahan (born 1966), also known as Smog and (Smog), is an American singer-songwriter born in Silver Spring, Maryland. Callahan began working in the lo-fi genre of underground rock, with home-made tape-albums recorded on four track tape recorders. Later he began releasing albums with the label Drag City, to which he remains signed today.

Callahan started out as a highly experimental artist, using substandard instruments and recording equipment. His early songs often nearly lacked…