Guest appearances
Phenomena – Psychofantasy (2006)
Candlemass – Candlemass 20 Year Anniversary (DVD 2007)
Various – Voices of Rock: High & Mighty (2009, "Into The Night")
Candlemass – Doomology (2010, on "Witches") (Tony Martin vocals – October 2004)
Phenomena – Blind Faith (2010, on "Liar")
Star One – Victims of the Modern Age (2010, on "Closer to the Stars")
Arrayan Path – Ira Imperium (2011, on "Ira Imperium (The Damned)")
Black Widow – Sleeping With Demons (2011, on "Hail Satan")
Wolfpakk – Wolfpakk (2011, on "Ride The Bullet")
Layla Milou – Reborn (2012, on "Bloody Valentine")
Benedictum – Obey (2013, on "Cry")
Schubert In Rock – Schubert In Rock (2013, on "Second King Of Darkness", "Youg Free And Deadly")
Herman Rarebell & Friends – Acoustic Fever (2013, on "Another Piece of Meat")
Lazy Bonez – Alive (2015, on "Racing Heart")
Magnus Karlsson's Free Fall – Kingdom of Rock (2015, on "When The Sky Falls")
Sebastien – Dark Chambers of Déjà Vu (2015, on "Lamb of God")
The V – Now Or Never (2015, on "King For A Day")
Feanor – We Are Heavy Metal (2016, on "Crying Games")
Lightning Strikes – Lightning Strikes (2016, on "Death Valley" and "301 AD Sins of Our Fathers")
Magnus Rosén – The World Changes (2016, harmonizing on "The Castle of Imagination")
Violet Janine – So Much More (2016, on "So Much More")
Zele Lipovača – Internal Waves of Love (2016, on "Missing You")
ZiX - Tides of the final war (2016, on "Metal Strike All star song")
Silver Horses – Tick (2017, on "Hang My Head In Shame" and "My Bad")
Magnus Karlsson's Free Fall – We Are The Night (2020, on "Temples & Towers" & "Far From Over")
Secret Society Feat Tony Martin - (2021), on "Darkest Hour"
Giuntini Deathline - V (2021), on "Stab in the dark"
The Sonic Overlords "Last days of Babylon" (2021) on "Past the end of time"
Star One - Revel in Time (2022), on "Lost Children of the Universe"
Quartz - "On the Edge Of No Tomorrow" (2022) on "Evil Lies"
Paul Di'Anno – The Book of the Beast (2024, duet on "Remember Tomorrow")