昨年2004年6月には、AVEXの"RHYHM REPUBRIC"レーベルより、 初のMIX CD『colores of time non-stop mixed by Kenji Hasegawa 〜in memories of OASIS〜』(RRCD-85335)をリリース。2005年3月30日には第2弾『colores of time 02 non-stop mixed by Kenji Hasegawa 〜perfume of the earth〜』(RRCD-85338)をリリース。
<<<レジデント・パーティー>>> ●SUNDAY AFTERNOON PARTY "GALLERY" w/DJ Nori, Alex &Fukuba@AOYAMA "CAY"
<<<DJ MIX、選曲、監修作品>>> [CD] ●V.A "colores of time non-stop mixed by Kenji Hasegawa 〜in memories of OASIS〜"(Rhythm Republic/AVEX) ●V.A. "colores of time 02 non-stop mixed by Kenji Hasegawa 〜perfume of the earth〜"(Rhythm Republic/AVEX) ●A Hundred Birds "Fly From The Tree" (GUT/FLME) 2005/2/9発売 ●V.A. "gallery" (flower) ●V.A. "Steppin' with neibours 〜japanese meets rbanbeats〜" (FLME) [ミックステープ] "G-KEN'S MIDNIGHT ESSENTIALS!!!" "G-KEN'S TWILIGHT COAST ESSENTIALS!!!" "G-KEN'S TMOSPHERIC RHYTHMS"
<<<A&Rとして手掛けた作品>>> ●Tokyo Ska Paradise Orchestra & V.A. "JUSTA RECORD COMPILATION Vol. 1" (JUSTA RECORDS) ●Byron Stingily "Club Stories" (cutting edge) ●DJ EMMA "EMMA HOUSE 2000" (cutting edge) ●ULTRA NATE "Stranger Than Fiction" (cutting edge) ●Yukihiro Fukutomi "On A Trip" (cutting edge) ●DJ EMMA "VIVA EMMA HOUSE" (cutting edge) ●DJ EMMA "EMMA HOUSE SEVEN" (cutting edge) ●Yukihiro Fukutomi "Timeless" (cutting edge) ●V.A. "SPIRITUAL LIFE MUSIC Vol.1" (cutting edge) ●SLAM MODE "UHURU 〜alpha experience〜" (cutting edge) ●Yukihiro Fukutomi "Revisions" (cutting edge) ●Toshiyuki Goto "Two-Way Traffic" (cutting edge) ●V.A. "Steppin' with neibours 〜japanese meets rbanbeats〜" (FLME) ●A Hundred Birds "Fly From The Tree" (GUT/FLME) 2005/2/9 ●V.A. "Night Escape@the POOL "MAI TAI" " (GUT/ FLME) 2005/7/20 ●Hajime Yoshizawa "Music from the Edge of the Universe" (GENEON) 2005/9/7