Quote:
With more than a week gone since the release of their new title song, Super Girl off Super Junior-M's first mini album, fans have been waiting patiently for the album to be out and to see what the boys have to offer. That wait has been shortened after track two, Blue Tomorrow, from their new album was recently played on radio.

Compared to their fast energetic dance song, Super Girl, Blue Tomorrow is a sentimental ballad that will surely charm your heart.

According to YesAsia.com, the release dates are:

Hong Kong version - 25th September
(Pre-orders get file folder)

Korean version - 28th September
(two additional tracks, Korean version of Super Girl and Blue Tomorrow)

Taiwan version - 30th September
(Pre-orders get file folder)

Video

Many thanks to Jenpooable for the tip.

credit: allkpop.com