With a Z meaning Gackt...

Two songs of Gackt will be used as opening and ending songs for Z Gundam movie, created to celebrarte the 20th birthday of the anime, that was created in 1985 (...Z Gundam, not Gundam, which was created in 1979).

Metamorphoze, a new song, will open the movie. kimi ga matteirukara, from his Crescent album, will end the movie.