2MASS NIR colour image of the Lagoon Nebula (M 8) with the 81 KMOS targets over-plotted. North is up, east is to the left. The white dashed circles show the 7.2′ field-of-view of KMOS for each of the pointings. The colour of the targets represents the effective temperature according to their spectral type (see Sect. 8). The objects for which no spectral classification has been obtained are coloured grey. The magenta diamond corresponds to a massive YSO. The number of KMOS targets in this region is 81.