Found this on youtube, a Korean boyband singing the song "Feel Your Breeze," originally sung in Japanese by V6.
I dunno. They definitely have better voice than the likes of Ken Miyake or Go Morita, but it just doesn't sound right, obviously since I listen to the original one first by V6. Also, looks like they're only 3 people, having to have background dancers. The groups seems to be less energetic and more girlish to me compared to V6.
Here's the original V6 one. Alas, Avex is pretty aggressive in shutting down videos. This is the only one I could find in Youtube, and it's pretty crappy quality.