  The Chiral Magnetic Effect (CME) is a remarkable phenomenon that stems from
highly nontrivial interplay of QCD chiral symmetry, axial anomaly, and gluonic
topology. It is of fundamental importance to search for the CME in experiments.
The heavy ion collisions provide a unique environment where a hot
chiral-symmetric quark-gluon plasma is created, gluonic topological
fluctuations generate chirality imbalance, and very strong magnetic fields
$|\vec{\bf B}|\sim m_\pi^2$ are present during the early stage of such
collisions. Significant efforts have been made to look for CME signals in heavy
ion collision experiments. In this contribution we give a brief overview on the
status of such efforts.
