LiveJournaler ChibiYuuto reports on a recent(?) CLAMP project: apparently CLAMP worked with a couple of the people behind Vocaloid, the popular singing-synthesizer that spawned Miku Hatsune, Rin and Len Kagamine, Megurine Luka, and more recently Megumi Nakajima's Megpoid (also known as Rankapoid).
The manga powerhouse illustrated a video with a song called “Mugen no Yami -echo of the past-,” sung by Miku, of course. The video is up on YouTube, so you can check it out right here:
It's really just a few illustrations, no real animation and not the most exciting video...in my opinion it's not even a particularly good song. But it's gorgeous CLAMP art, so who cares?