Arf started in 2013 as a live a cappella re-imagining of Genevieve Artadi's solo music, and in only a few months has evolved into a brand new beast with six heads to think up songs and arrangements, and fourteen limbs playing synths and drums, in addition to their avant-garde acapella repertoire. The Arf Beast is Kathy Hoye, Sean Fitzpatrick, Andrea Calderwood, Genevieve Artadi, Alexandra Domingo, and Jessica Freedman.