”You only know your planet as well as you know your star” is a statement that nicely captures why the study of exoplanet host stars is important, regardless of whether the planet has been detected using the radial velocity- or the transit technique. If the host star shows an asteroseismic signal, we can exploit this to obtain very precise information about the properties of the star and thus the planet. In this presentation, I will review a few current methods of exoplanet detection, focusing on the role played by the corresponding seismic analysis of the host star. In particular, I will emphasize how SONG can play a key role for these studies, taking full advantage of the synergy between SONG and the TESS mission to learn more about planets that orbit close to their host star.