| Idol A | |
| Ja Kanji: | アイドルA(エース) |
| Ja Romaji: | Aidoru Ēsu |
| Type: | manga |
| Author: | Mitsuru Adachi |
| Publisher: | Shogakukan |
| Demographic: | Seinen, shōnen |
| Magazine: | Weekly Young Sunday Monthly Shōnen Sunday |
| First: | 2005 |
| Last: | 2011 |
| Volumes: | 1 |
is a Japanese manga written by Mitsuru Adachi about a high school girl who has a successful career as an idol and who wishes to play on the high school baseball team, but cannot due to the rules. Her father is the team's coach, and her best friend happens to look very much like her, so she is able to do a swap with him during games and meet her dream. The first 3 chapters were published irregularly in Weekly Young Sunday between 2005 and 2007 [1] [2] [3] and collected in Short Program 3 tankōbon. Later, chapter 4 was released in volume 36-37 of the 2007 series of Weekly Young Sunday and chapters 5 and 6 were released in the November 2010 and August 2011 editions of Monthly Shōnen Sunday. Chapters 1-6 were released in a tankoubon dedicated to the series, published in 2011. The Idol A tankoubon includes chapters 1 to 6 and an extra manga chapter commemorating 40 years of Mitsuru Adachi manga career, done by himself and fellow manga creator Rumiko Takahashi.
In summer 2005 a 2.5 minutes long original promotional video animated by studio OLM was produced by Shogakukan for the then-upcoming release of the Idol Ace manga in the Weekly Young Sunday magazine.
The short features Azusa being recorded throughout the day by a peeping pervert.