The discography of Japanese R&B and pop singer Ken Hirai consists of ten studio albums, two compilation albums, one remix album, three cover albums, thirteen video albums and numerous singles and promotional singles. Hirai debuted as a musician under Sony Music Records in 1995 with the single "Precious Junk", but found success five years later with the single "Lakuen" and his third album, The Changing Same. In addition to his studio albums, Hirai has released a series of acoustic cover albums entitled Ken's Bar, named after a series of concept live concerts he performs.