About Ai Otsuka
Ai Otsuka (大塚 愛, Ōtsuka Ai; born September 9, 1982) is a Japanese singer-songwriter from Suminoe-ku, Osaka, Japan. She is a popular artist on the Avex Trax label and is best known for her 2003 hit "Sakuranbo", which stayed in the Top 200 Oricon Weekly Singles Chart for 103 weeks. A piano player since age four, Otsuka composes and co-produces her own songs, as well as writes her own lyrics. Her music ranges from upbeat pop/rock music to ballads. Every year, Otsuka also has her own Love is Born tour to mark the anniversary of being in the music industry and her birthday in September. All of the Love is Born concerts take place in Japan, ending in her hometown of Osaka. On Love is Born 5th Anniversary in 2008, Otsuka held a leg of the concert in Taiwan, where she performed a Chinese version of her song "Planetarium". In 2009, Otsuka held 3 Love is Born 6th Anniversary concerts in Japan, as well as two concerts in Taiwan. In 2012, Otsuka debuted as the vocalist of the band Rabbit. She sold 7 million copies in Japan. She sent demo tapes to record labels with no positive results, until she got a call back from Avex just before her graduation from university.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.