Wonny was a singer from 2004 to 2008, replaced by Alexandra Von Bolz'n from 2008 to 2015, then by Ulla since 2015.

Alexandra Von Bolz'n, real name Alexandra Petrović, worked for 15 years in the media. Artistically, she has sung in projects ranging from sludge, to drone and grindcore. She participated in an experimental jazz album with Idiot Switch.