We present an asteroseismic analysis of the exoplanet host star $\epsilon$\,Tau, based on observations from SONG in both China and Tenerife, on K2-data, and on interferometric data. We obtain asteroseismic parameters based on a number of individual frequencies, and from these we derive physical parameters for $\epsilon$\,Tau, including its mass. This first mass-determination of $\epsilon$\,Tau leads to a revision of the minimum mass of the planetary companion. Depending on the status of the project, we will also present first results from SONG observations of another exoplanet host star, $\epsilon$\,Cyg. The work is done in larger collaborations, and the full lists of authors will be presented at the talk.