Luminosity measurements and K$_{\rm{S}}^{\rm{0}}$ production with first LHCb data

The prompt K$_{\rm{S}}^{\rm{0}}$ cross-section analysis was presented. This is performed with data taken at centre-of-mass energy $\sqrt{s}$ = 0.9 TeV. The production was measured as a function of K$_{\rm{S}}^{\rm{0}}$ transverse momentum and rapidity; results are compared with various PYTHIA tunings.