Crystal Kay discography
The discography of Japanese contemporary R&B singer Crystal Kay consists of 12 studio albums, two extended plays, five compilation albums, four video albums and numerous single releases. Crystal Kay debuted as a singer at 13 years of age in 1999 under Epic Records Japan. Her third album Almost Seventeen saw a great leap in popularity for Crystal Kay, reaching number two on Oricon's albums chart. In 2005, Cyrystal Kay sung the eponymous theme song for the Tsuyoshi Kusanagi drama Koi ni Ochitara: Boku no Seikō no Himitsu. "Koi ni Ochitara" became Crystal Kay's most successful single, being certified for a million ringtone downloads.
In 2011, Crystal Kay signed to Delicious Deli Records, after 11 years with Epic Records, and released the album Vivid. In March 2013 Crystal Kay relocated to New York City to pursue an American debut through Copetin Inc, releasing the single "Busy Doing Nothing" a year later. In October 2014 Crystal Kay re-focused on Japan by switching her management to LDH.
Albums
Studio albums
Extended plays
Compilation albums
Singles
As a lead artist
As a featured artist
Promotional singles
Other appearances
| Title | Year | Album | Notes |
| "L'amant" | 2001 | Gaining Through Losing | Cameo introduction vocals |
| "Feel the Same?" | 2002 | Harlem Ver. 1.0 | |
| "Tha Superstar" | 2002 | Non-album song | Cameo vocals |
| "Hello Goodbye" | 2003 | Block Holiday | |
| "Do U Like It? " | 2003 | "Reeewind!" | Remix of "I Like It" |
| "Get On!" | 2003 | Astromantic | Originally appeared on the "Reeewind!" single |
| "Reeewind! " | 2004 | Astromantic Charm School | |
| "Get On! " | 2004 | Astromantic Charm School | |
| "Love Don't Cry" | 2007 | Cosmicolor | |
| "Love Don't Cry " | 2007 | Remixed by Stephen McGregor. | |
| "Music Is Mine" | 2009 | Maboroshi no Shi | |
| "Wonder" | 2009 | KAT-TUN Live: Break the Records | Duet with Jin Akanishi, performed live at KAT-TUN's Summer '09 Break the Records tour and Akanishi's solo Yellow Gold 3011, however the studio recording has not been released. |
| "Universe " | 2010 | Identity | |
| "Zutto" | 2010 | World Ska Symphony | |
| "Love Don't Cry " | 2010 | M-Flo 10 Years Special Live: We Are One | |
| "Reeewind! / Get On! " | 2010 | M-Flo 10 Years Special Live: We Are One | |
| "Cannonball" | 2010 | 10-nen Saki mo Kimi ni Koishite Original Soundtrack | Acted as the ending theme song for the drama, while Crystal Kay's song "Time of Love" was the theme song. |
| "Zutto " | 2010 | Tokyo Ska Paradise Kokugikan & Tokyo Ska Paradise Taiikukan Live DVD | |
| "Jungle Boogie " | 2010 | Tokyo Ska Paradise Kokugikan & Tokyo Ska Paradise Taiikukan Live DVD | |
| "Get On! " | 2011 | After 5 Vol. 1 | Remixed by Taku Takahashi. |
| "Koi ni Ochitara " | 2011 | Jyonetsu Tairiku Live Best | |
| "Suki " | 2012 | Minna de Dori Suru? Do You Dreams Come True? Special Live! | |
| "Asa ga Mata Kuru " | 2012 | Minna de Dori Suru? Do You Dreams Come True? Special Live! | |
| "Endless Love" | 2012 | Tuskegee | Japanese bonus track, replacing Shania Twain's vocals with Crystal Kay's. |
| "Eyes on Me " | 2012 | Final Fantasy Orchestral Album | |
| "Senka no Hoshi de" | 2013 | "Inochi no Rhythm" | |
| "Boyfriend " | 2013 | Live & Documentary DVD "AP Bank Fes '12 Fund for Japan" | DVD charity concert for AP Bank. |
| "I Don't Care" | 2014 | The Arrival | |
| "All My Ladies" | 2015 | @chenelleworld | |
| "Nekketsu" | 2016 | Cyborg | |
| "Inochi no Rhythm ~Great Journey~" | 2017 | I | Cd and DVD |
| "Without You" | 2017 | Here I Stand | |
| "World Is Yours" | 2017 | 360°ChamberZ | |
| "T-REX" | 2017 | 360°ChamberZ | |
| "Ai wa Naze" | 2018 | Kimi ga Iru yo | |
| "TAYUTAU" | 2019 | Equanimity |