The TESS mission was launched, on April 18, to search for transiting planets around stars all over the sky brighter than 12. Ground-based observatories are preparing for characterizing TESS targets, and following-up in radial velocity the planet hosts. SONG is perfectly suited for carrying out a characterization of the brigthest stars (V <6), which are also the most interesting ones since only for the brightest the sensitivity will be such to allow the detection of the planet signatures in the stellar spectrum; let it be in transmission spectroscopy during the transit or in reflected starlight off transit. We are creating a uniform spectroscopic atlas of the brightest Northern stars using the Hertzsprung SONG telescope, and analyzing them in a homogeneous fashion. This catalog will hopefully become the gold standard reference for spectroscopic parameters and chemical abundances of the brightest stars. Here we will present the first results from the project.