  We review some recent theoretical results on radiative rare kaon decays.
Particular attention is devoted to the channels $K\to \pi l\bar{% l}$ and $K\to
\pi \pi \gamma$, where we are (or might be) able to extract the short distance
contributions. This is achieved by a careful study of the long distance part.
We study also CP violating observables, which are sensitive also to extensions
of the SM. As byproduct, we discuss interesting chiral tests.
