  The azimuthal anisotropy of particles associated with jets (jet particles) at
midrapidity is measured for the first time in p-Pb and Pb-Pb collisions at
$\sqrt{s_{\rm NN}}$ = 5.02 TeV down to transverse momentum ($p_{\rm T}$) of 0.5
GeV/$c$ and 2 GeV/$c$, respectively, with ALICE. The second-order Fourier
coefficient of the jet-particle azimuthal distribution ($v_2$) in
high-multiplicity p-Pb collisions is positive, with a significance reaching
6.8$\sigma$ at low $p_{\rm T}$. Comparisons with the inclusive charged-particle
$v_2$ and with AMPT calculations are discussed. The model describes
qualitatively the main features of the jet-particle $v_2$ in high-multiplicity
p-Pb collisions and indicates that the positive jet-particle $v_2$ is generated
by parton interactions.
