Yoshiki Hayashi hardly sleeps. The drummer, pianist, songwriter and leader of rock band X Japan has been in and out of the country constantly these past few months, promoting his band's new documentary film, "We Are X." At the same time he has been performing solo concerts, recording and squeezing in all the things the rest of us simply recognize as everyday life.

In one scene of "We Are X," he speaks of his sleeping patterns: not much on a daily basis, but he takes a day every two weeks in which he sleeps for about 10 hours straight. Aside from that, he is working.

After a slew of appearances and screenings at film festivals around the world, including South By Southwest and Sundance, the documentary, directed by American Stephen Kijak ("Stones In Exile"), finally hit Japanese theaters on March 3.