John Karkazis, better known as Johnny K, (born in Chicago, Illinois) is a producer/engineer/mixer/musician and songwriter. He owns Groovemaster Recording Studios in Chicago. In addition to the studios, his 40,000-square-foot (3,700 m2) music complex includes views of the Chicago sky line, a gymnasium, rehearsal rooms, and pre-production rooms.
|Nonpoint||Nonpoint||Produced, engineered and mixed|
|Staind||Staind||Produced, engineered and mixed|
|Cold Day Memory||Sevendust||Produced and engineered|
|The Sickness||Disturbed||Produced and engineered|
|Believe||Disturbed||Produced and engineered|
|Ten Thousand Fists||Disturbed||Produced and engineered|
|Seventeen Days||3 Doors Down||Produced and engineered|
|3 Doors Down||3 Doors Down||Produced and engineered|
|Peach Fuzz||Enuff Z'Nuff||Mixed and Engineered|
|Finger Eleven||Finger Eleven||Produced, engineered and mixed|
|Them vs. You vs. Me||Finger Eleven||Produced, engineered and mixed|
|The Illusion of Progress||Staind||Produced and engineered|
|Every Second Counts||Plain White T’s||Produced, engineered and mixed|
|Big Bad World||Plain White T's||Produced and engineered|
|Light From Above||Black Tide||Produced, engineered and mixed|
|Running with Scissors||The Orphan Punks||Produced, engineered and mixed|
|Until There's Nothing Left of Us||Kill Hannah||Produced, engineered and mixed|
|Desensitized||Drowning Pool||Produced and engineered|
|XIII||Mushroomhead||Produced and engineered|
|Supercharger||Machine Head||Produced and engineered|
|No One||No One||Produced, engineered and mixed|
|Music Saves||Big Wow||Engineered and mixed|
|Scars||Soil||Produced and engineered|
|Redefine||Soil||Produced and engineered|
|Healing||Unloco||Produced, engineered and mixed|
|Adelitas Way||Adelitas Way||Produced and engineered|
|Welcome To The Wasteland||Bad City||Produced and mixed|
|War of Angels||Pop Evil||Produced and mixed|
|Red Lamb||Red Lamb||Mixed |
- Jim, DeRogatis (2009-01-29). "Chicago's Grammy-nominated producer Johnny K". Chicago Sun-Times. Retrieved 2009-07-10.
- "MEGADETH Taps DISTURBED/SEVENDUST Producer For New Album - May 8, 2011". Blabbermouth.net. Blabbermouth.net. Retrieved 17 August 2011.
- Childers, Chad. "Saint Asonia Reveal Official Lineup, Lead Single ‘Better Place’". Loudwire.com. Loudwire. Retrieved 15 May 2015.