massive attack's fifth studio album 'heligoland' features guest vocals from damon albarn, hope sandoval, martina topley-bird, guy garvey and tunde adebimpe. long time cohort horace andy makes a return alongside massive attack founding members robert del naja and grant marshall. damon also plays bass on 'flat of the blade' and keyboards on 'splitting the atom' while portishead's adrian utley plays guitar on 'saturday come slow'. the band also collaborated with dfa's tim goldsworthy on selected tracks. the cover artwork features an original image by robert del naja. on 'heligoland' massive attack further demonstrates doing what they do best by augmenting organic textures and sounds with their own cool brand of creepy trip-hop.