- ILLENIUM ft. Echos
- ILLENIUM ft. GOLDN
- ILLENIUM ft. Ku, Georgia
- ILLENIUM ft. Leighton, Chandler
- ILLENIUM ft. OEKIIN
- ILLENIUM ft. Vance, Foy
- ILLENIUM with Bellion, Jon
- ILLENIUM with Grey, Skylar
- ILLENIUM, Bellion, Jon & Said the Sky feat. Wells, Anika
- ILLENIUM, Broussard, Valerie & NURKO
- ILLENIUM, Dabin & Lights
- ILLENIUM, DeLonge, Tom & Angels & Airwaves
- ILLENIUM, Excision & HALIENE
- ILLENIUM, Excision & I Prevail
- ILLENIUM, Krewella & Slander
- ILLENIUM, Said the Sky & Rock Mafia
- Illés
- illexotic
- Illi
- Illic, Bata
- Illicit (Dutch Hip-Hop band)
- Illicit Nature (featured on game Skatebird)
- Illidiance (cyber metal/core)
- Illinois
- Illinois Jacquet All Stars, The
- illion
- illion feat. SLACK
- ILLIONAIRE RECORDS
- iLLism
- Illiterate Light
- ILLLS
- Illmaculate (US battle rapper Gregory Poe)
- Illmaculate feat. OnlyOne
- Illmatic (German rapper of Greek decent, started rapping in English, now rhymes in German)
- Illmatic & Steen, Cassandra
- Illmind
- Illnath
- Illogic
- Illogic & Blockhead
- Illogic feat. Slug
- Illogicist
- illScarlett
- Illsley, John
- Illum Sphere
- Illumate (Russian rapper)
- Illumenium
- Illuminandi
- Illuminata
- Illuminate (German gothic band)
- illuminati hotties
- illuminati hotties feat. Meek, Buck
- illuminati hotties feat. Menne, Alex
- Illumination (Norway)
- Illumination (Goa / psytrance; Amir Dvir)
- Illumination X (US Metal Group)
- Illuminatus (Nottingham Pink Metal)
- Illuminine (Kevin Imbrechts)
- ILLUMISHADE (Swiss metal band)
- ILLUMISHADE & Glanzmann, Chrigel
- ILLUMISHADE feat. Glanzmann, Chrigel
- Illusion (70's British prog/pop band, ex-Renaissance)
- Illusion (Polish metal band)
- Illusion of Choice
- Illusion Suite
- Illusion, The (USA Pchychedelic rock)
- Illuster
- Illustrated
- Illustre
- Illuvia (Swedish ambient / electronic musician)
- illuwn (instrumental hip-hop artist)
- Illvilja (Black Metal from sweden)
- Illy (Australian rapper)
- Illy (Illy Gouveia, Brazilian singer)
- Illy (feat. Anne-Marie)
- Illy (feat. Blue, Vera)
- Illy (feat. Marko Penn)
- Illy (feat. McDougall, Jenna)
- Illy (feat. Sir The Baptist)
- Illy (feat. Waters, Mike)
- Illy feat. Anne‐Marie
- Illy feat. Blue, Vera
- Illy feat. Pez
- Illy feat. Sebastian, Guy
- Illy feat. Stringer, Ahren
- Illy feat. Thundamentals
- Illya Kuryaki and the Valderramas
- Illyah Kuryahkin
- Illyria (Blackgaze)
- Illyus & Barrientos
- ilo ilo
