Tolong jelaskan mengenai Pembawa lagu unit: dari Team K 2nd Stage "Seishun Girls"

"Blue Rose" / Akimoto, Ohori, Masuda, Miyazawa

"Kinjirareta Futari" / Oshima, Kasai

"Fushidara na Natsu" / Akimoto, Miyazawa, Oshima, Ohori, Kasai, Umeda, Noro, Masuda, Matsubara

Pertunjukan AKB48 Team B 1st Stage "Seishun Girls"

Masa pertunjukan: 8 April–2 Oktober 2007

Naru Inoue, Kazumi Urano, Aika Ota, Yuki Kashiwagi, Haruka Katayama, Ayaka Kikuchi, Miki Saotome, Miku Tanabe, Haruka Nakagawa, Sayaka Nakaya, Reina Noguchi, Natsumi Hirajima, Yuki Matsuoka, Rumi Yonezawa, Shiho Watanabe, Mayu Watanabe