初音ミクが鏡音レンと一緒にデモソング「L-Side」を歌ってくれたようです

[Legendmaker12]

I can hear that that's not Rin... It's Miku.

[w0kit0ki]

are both singing??

if they doo...this is a kickass duet!!!!

<3

[lollylovex3]

of course they're singing together. they rarefuly (i think) sing solo.. XD

[animezirow]

Well, there have been more and more solo songs circulating