While it is clear that gas fuels both star formation and nuclear activity in galaxies, the connection between the growth of their stellar content and that of their central supermassive black hole remains elusive. Previous surveys attempting to address this issue have been biased against obscured and/or moderate luminosity systems therefore only allowed us to sketch a partial picture, and an incomplete census of all the phases of black hole growth. Do the stars and central black hole grow in lock-step? What are the governing physical processes? I will present a recently-developed active galactic nuclei (AGN) selection method and a few surprises that were revealed upon its application. These include a high fraction of AGN in star-forming galaxies at intermediate redshifts 0.3