- Klassenfahrt by K.I.Z prod. by Mach One
- Klassenfahrt (Flashgordon Remix) by K.I.Z prod. by Flashgordon (Produzent)
- Klopapier by K.I.Z prod. by WassBass
- Koksen ist scheiße by K.I.Z (Ft. Basstard, Defy, Drama Kuba, Flexis, Kalusha, Kannibal Rob, King Orgasmus One, Mach One, SAID, Smoky & Tony D) prod. by Nico K.I.Z
- Koksen ist scheiße (Promo Version) by K.I.Z (Ft. Boba Fettt) prod. by Nico K.I.Z
- Komm rein by Tony D (Ft. K.I.Z) prod. by Tai Jason
- Kurth by K.I.Z prod. by Dein Vater
- Küss mir den Schwanz by K.I.Z prod. by Tai Jason
- Lach mich tot by K.I.Z prod. by Robot Koch
- Lach mich tot (Promo Version) by K.I.Z (Ft. Beat Gottwald & Kummer) prod. by Nico K.I.Z
- Lass die Affen aus'm Zoo (Babos Remix) by Haftbefehl (Ft. K.I.Z) prod. by Bazzazian
- Lass die Sau raus by K.I.Z prod. by WassBass
- Lass uns feiern RMX by K.I.Z (Ft. Aret) prod. by WassBass
- Lauf weg by K.I.Z (Ft. Drama Kuba, Jesse MC, Kannibal Rob & Vorkkkone) prod. by Nico K.I.Z & Philipp Hoppen
- Lauf weg (Promo Version) by K.I.Z prod. by Nico K.I.Z
- Lecken im Puff by K.I.Z prod. by Drunken Masters & Nico K.I.Z
- Legenden by Kollegah (Ft. K.I.Z) prod. by Rizbo
- Letzte Chance prod. by The Cratez & Philipp Hoppen