9th gen singing Seishun Collection
https://www.youtube.com/watch?v=A8junEUh31w
10th gen singing Seishun Collection
https://www.youtube.com/watch?v=1tN56qV5uLI
11th gen Oda Sakura singing Seishun Collection
https://www.youtube.com/watch?v=btmP_t4O-m8
12th gen singing Seishun Collection
https://www.youtube.com/watch?v=gRWVlEoOjF0
BEYOOOOONDS x Morning Musume. '19 singing Seishun Collection (13th gen and 14th gen Morito Chisaki have yet to sing it on their own)
https://www.youtube.com/watch?v=mRcHTV0uFRo