  The gravitational form factors (GFFs) of pions has been calculated from a
top-down holographic QCD approach with momentum transfer dependence for the
first time. It is important because the GFFs of hadrons have information on the
internal stress distribution that may provide insight into the mechanism of how
QCD forms hadrons. The forward limit value of this GFFs, i.e. the D-term, was
also obtained. Furthermore, in this approach, we observe the so-called glueball
dominance, in which pions have gravitational interactions via infinite glueball
spectra.
