that's a different use of the word generation.. i tend to use line-up for that meaning. i meant generation as in auditions + new members. so MM got 3 singles but 2 generations. they had 4 line-ups this year.. 5nin (after Eri/Jun/Lin) -> 5nin + 9th gen -> 5nin + 9th + 10th -> 4nin + 9th + 10th.
If you are really nitpicky you can identify 5 S/mileage line-ups this year
original line-up: 4-nin new submembers -> 9-nin Saki graduation -> 8-nin Fuyuka stepping down -> 7-nin Submembers become members -> 7-nin
And depending on if you count the day 12/31 or the event on 12/31 as Yuuka's graduation you can even identify a 6th line-up. If she graduate at the event the couple of hours between the last event and the new year could be counted. Yuuka graduation -> 6-nin
As for this single, it will most likely come up on the webshops at the end of the month with probably an early February release date.
um, okay. ^^;; not crazy about the title, but i never end up expecting how the song ends up sounding (other than general serious/happy/sexy styles), so i'm not gonna try guessing. lol. up-beat in some way is all i can tell for sure from the title.
yay for jukies first single!! boo for late January-ness. ;-;