[2] Ayaka's second single "Melody (Sounds Real)" peaked at number 14 on the Oricon charts has gone on pass the 20,000 mark.

[citation needed] On November 1, 2006, Ayaka's debut album, First Message, was finally released after several delays.

Ayaka also performed "Jewelry Day", as well as many other songs, at the Japanese leg of Live Earth in Tokyo on July 7, 2007.

At the end of 2007 Ayaka performed "Peace Loving People (special piano version)" in the annual music show Kōhaku Uta Gassen.

Ayaka also attended an interview after Okaeri's production with Hiro Mizushima, who was a member of the Zettai Kareshi cast.

[11] On November 18, 2009, Ayaka's MTV Unplugged performance, her last solo live before her hiatus, was recorded at Osaka-jō Hall.

On October 20, 2011, Ayaka announced that she would return from hiatus in 2012; her condition from her Graves' disease has improved over time.

[16] On December 23, 2011, Ayaka made her first public performance since her medical break by appearing on the Music Station 2011 Special.

She performed two new songs, "Yasashii Ao" (優しい青) and "Hajimari No Toki" (はじまりのとき) from her upcoming album.

[17] On December 31, 2011, Ayaka appeared on the 62nd NHK Kohaku Uta Gassen, singing 'Minna Sora no Shita' as part of the Red team.

[18] On January 1, 2012, video performances and interviews of her upcoming songs were released exclusively on Ayaka's Gyao!

[19] Japanese singer Shizuka Kudō released a new single titled "Kimi ga Kureta Mono" on October 17.

[23] While on tour, Ayaka released her first cover album entitled Yūon Club: 1st Grade on September 4, featuring songs from Utada Hikaru and Mr. Children.

It was announced late August that Ayaka would sing the campaign song for Nestle's Kit Kat to celebrate the 40th anniversary in Japan.

A preview of the music video had been released earlier that week through Ayaka's official YouTube Channel, AyakaMV.

[25] In 2014, Ayaka released "number one", the theme song for the Fuji TV Sochi Olympics relay.

Ayaka released her fourth studio album, Rainbow Road, on 15 April 2015, reached number 3 on the Oricon Weekly Charts.

[26] The single was used as the theme song Tsubaki Bunguten ~Kamakura Daishoya Monogatari~, followed by "Sakura" (サクラ) on October 14.

Also in 2020, she released her 19th single on March 5, "Michishirube (道しるべ)", followed by her second collaboration with Daichi Miura "Negaiboshi (ねがいぼし)", and her first Christmas song, "Xmas Santa."

[27] On 23 October, Ayaka announced sixth studio album Love Cycle, which will be released on 1 February 2022.