GACKT actually took Ayu's SEASONS and ran with it lol.
As far as i could get out of this, this is going to be a promo thing for the Nestlé's newest coffee machine,
to which he also filmed a music video of the song that is going to be out on the first day of the new year on the Nestlé's YouTube channel.
He has covered the song in one of his Camui Gakuen shows back in 2013 (OMG this has been 4 years already!):
https://www.youtube.com/watch?v=IoUJwwUiflI
Here's a link to the video with commentary from GACKT and the making of the MV. Which seems to be a simple one:
https://www.youtube.com/watch?v=IR_RJGROEKA
And a japanese article covering the whole thing:
http://www.excite.co.jp/News/music/2...211908345.html
EDIT:
here's the promo with a clear short preview of the song and the MV, i guess?
INFO:
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