  We predict the $\mathcal{V} \to \mathcal{P} \gamma$ decay widths and the
$\mathcal{V} \to \mathcal{P} \gamma^{*}$ transition form factors, where
$\mathcal{V}=(\rho, \omega, K^*, \phi)$ and $\mathcal{P}= (\pi,K,
\eta,\eta^\prime)$, using spin-improved holographic light-front wavefunctions
for the mesons. We find excellent agreement with the available data for both
the decay widths and the timelike transition form factors extracted from the
leptonic conversion decays $\mathcal{V} \to \mathcal{P} l^+ l^-$.
