Tolong jelaskan mengenai Anggota pendukung: dari Team A 2nd Stage "Aitakatta"

Tomomi Itano・Kazumi Urano・Tomomi Oe・Mai Oshima・Ayumi Orii・Nozomi Kawasaki・Haruna Kojima・Hitomi Komatani・Yukari Sato・Mariko Shinoda・Minami Takahashi・Hana Tojima・Rina Nakanishi・Risa Narita・Natsumi Hirajima・Michiru Hoshino・Atsuko Maeda・Kayano Masuyama・Minami Minegishi・Shiho Watanabe