Aa Ii na!

Aa Ii na! (あぁ いいな!; Ah, How Nice!) is the second single released by Japanese pop duo, W. It was the first original release by W, as all their previous songs had been covers. The single was released on August 18, 2004 under the Zetima label. In the music video for "Aa Ii na!", W are supported in dance scenes by Berryz Koubou who act as back-up dancers in both "Aa Ii na!" and their next single, "Robo Kiss". The single sold 41,581 copies in total, making this their highest selling single. 
==Tracklist==
#Aa Ii na!
#Otome no Keitaidenwa no Himitsu (乙女の携帯電話の秘密; A Girl's Cell Phone's Secret)
#Aa Ii na! (Instrumental)
==Featured Members==
*Tsuji Nozomi
*Kago Ai
==Single Information==
All Lyrics and Composition: Tsunku
;Aa Ii na!
*Arrangement, Programming, Guitar: Suzuki "Daichi" Hideyuki
*Guitar: UME
*Chorus: Tsunku
*Music Video: Kawatani Hideo (Director), Suehiro Tetsushi (Producer)
;Otome no Keitai Denwa no Himitsu
*Arrangement, All Instruments: Hirata Shoichiro
==Performances==
===TV Performances===
*[2004.08.15] Hello! Morning
===Concert Performances===
*Hello! Project 2004 summer ~Natsu no Doon!~
*2004 Natsu First Concert Tour "W Standby! W & Berryz Koubou!" - with Berryz Koubou
*Berryz Koubou Live Tour 2005 Shoka Hatsu Tandoku ~Marugoto~ - Tokunaga Chinami, Kumai Yurina
*W & Berryz Koubou Concert Tour 2005 Natsu ~HIGH SCORE!~ - with Berryz Koubou
*Country Girls Live Tour 2016 Fuyu - Yanagawa Nanami, Funaki Musubu
*Country Girls LIVE2018 ~Minazuki!~ - Yanagawa Nanami, Funaki Musubu
*Hello! Project 2019 SUMMER "beautiful" - Sato Masaki, Oota Haruka, Wada Sakurako, Ono Mizuho, Kobayashi Honoka (part of a medley)
==Trivia==
*This song was used as the final ending for Doraemon.
==Oricon Chart Positions==
Total Reported Sales: 41,581
==Videos==
==External Links==
*Discography: Hello! Project (archived), UP-FRONT WORKS, Tsunku.net
*Wikipedia: Japanese, English
*Lyrics: , 
cs:Aa Ii na!
da:Aa Ii na!
de:Aa Ii na!
es:Aa Ii na!
fr:Aa Ii na!
it:Aa Ii na!
ja:あぁ いいな!
Category:W Singles
Category:2004 Singles
Category:4th Generation Morning Musume Singles In
Category:Highest Selling Single
Category:2 Members Line-Up
Category:Theme Songs
Category:Longest Charting Single