Power was a song from the EXO album that was released on what date?
Power (Exo song): "Power" is a song recorded by South Korean boy group EXO for the repackaged edition of their fourth studio album "The War:The Power of Music". The War (album):  It was released digitally on July 18, 2017 and physically on July 19, 2017 by S.M. Entertainment under Genie Music's distribution.
July 18, 2017