Actually an anagram of 'Kate Bush', Shut Beak recorded a cover version of Army Dreamers entitled 'Army Runners' for the PRF Monthly Tribute Series in April 2017. According to the information given, the duo consists of Penningtron (electric and acoustic guitars) and Ker Bush (electric and acoustic voices). No other recordings of the duo exist.
- Shut Beak - Army Runners. Bandcamp, retrieved 22 October 2018.