System of a Down & Serj Tankian - Toxity
Device feat. System of a Down, Serj Tankian - Out Of Line (feat. Serj Tankian & Terry "Geezer" Butler)
System of a Down & Serj Tankian - I-E-A-I-A-I-O
System Of A Down & Serj Tankian - Vicinity Of Obscenity
System of a Down & Serj Tankian - Radio/Video
Serj Tankian&Daron Malakian (ex-system of a down) - empty walls
Serj Tankian & System Of A Down - Empty Walls
Hed(PE) - Feel Good (ft. Serj Tankian [System Of A Down] & Morgan Lander [Kittie])
Tech N9ne - Straight Out The Gate (feat. Krizz Kaliko & Serj Tankian of System Of A Down)
Wyclef Jean feat. Serj Tankian (System Of A Down) & Sizzla - Riot (Radio Edit)
Tom Morello (Rage Against The Machine) & Serj Tankian (System Of A Down) - Lazarus On Down