Known For
Sound
Known Credits
5
Gender
Male
Birthday
January 17, 1972 (54 years old)
Place of Birth
Higashiōsaka, Prefettura di Osaka, Giappone
Since his debut, Hirai has worked as a model, actor, composer, lyricist, singer, and spokesperson.
During his career, Hirai has released 45 singles and nine studio albums as of January 2019. According to Oricon, his single Hitomi o Tojite (Close Your Eyes) became the best-selling single of 2004 in Japan, while his compilation album Ken Hirai 10th Anniversary Complete Single Collection '95–'05 "Utabaka" became the best-selling album of 2006 in Japan.
| 2019 | Marigold in 4 Minutes...Theme Song Performance | |
| 2019 | The World of Machida-kun...Theme Song Performance | |
| 2019 | 未解決の女 警視庁文書捜査官～緋色のシグナル～...Theme Song Performance | |
| 2018 | Like Shooting Stars in the Twilight...Theme Song Performance | |
| 2018 | 50 First Kisses...Theme Song Performance | |
| 2018 | 50 First Kisses...Songs | |
| 2018 | Women Document Detectives...Theme Song Performance | |
| 2017 | Doraemon: Nobita's Great Adventure in the Antarctic Kachi Kochi...Theme Song Performance | |
| 2016 | Good Partner...Theme Song Performance | |
| 2015 | A Stitch of Life...Theme Song Performance | |
| 2012 | The Tragedy of W...Theme Song Performance | |
| 2011 | Star Watching Dog...Theme Song Performance | |
| 2009 | The Three Musketeers...Theme Song Performance | |
| 2008 | Wenny Has Wings...Theme Song Performance | |
| 2003 | Tengoku e no Ouenka Cheers...Songs | |
| 2002 | Psycho Doctor...Theme Song Performance | |
| 2001 | Love Revolution...Theme Song Performance | |
| 1995 | 王様のレストラン...Theme Song Performance |
