  A measurement of the cross-section for vector boson production in association
with jets containing b-hadrons is presented using 35 pb-1 of data from the LHC
collected by the ATLAS experiment in 2010. Such processes are not only
important tests of pQCD but also large, irreducible backgrounds to searches
such as a low mass Higgs boson decaying to pairs of b-quarks when the Higgs is
produced in association with a vector boson. Theoretical predictions of the V+b
production rate have large uncertainties and previous measurements have
reported discrepancies. Cross-sections measured using in the electron and muon
channels will be shown. Comparisons will be made to recent theoretical
predictions at the next-to-leading order in alpha_s.
