あぁ！ (Aa!) was a one-shot unit in Hello! Project that released one single, "First Kiss," in 2003. At the time of its formation, its members were among the youngest in Hello! Project and were considered to be upcoming "aces". In July 2009, it was announced that あぁ！would be reformed with its original members minus Reina Tanaka, and Akari Saho from Hello! Project Egg was added to the line-up. 1st Generation: Tanaka Reina (田中れいな) - モーニング娘。