Hirano Aya was invited to the first night of Mizuki Nana's three in a row at the Budokan in Tokyo and came away saying that the show was "wow!" and "coool きゃっこよかっちゃあ～" and "really terrific 凄すぎる…！！," and that she "admires 憧れます(//∀//）" Nana-san.
"I wanna see it again!" she writes in her blog. But she also says she wants to get to the point of being able to do a show like that herself someday.
Here is the copy of Nana-chan's new single (Shin Ai 深愛 "Deep Love") that Nana gave Aya:
And here is Aya's ticket stub:
Aya and Nana are currently starring together in White Album, in which they play a top idol (Nana) and a young idol just making her debut (Aya).