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