0
Nightfall
Nightfall
band
1
Firewind
Firewind
Greek power metal band
2
Revolution Renaissance
Revolution Renaissance
band
3
Nightrage
Nightrage
Greek/Swedish band
4
Gus G
Gus G
Greek guitarist
5
Septicflesh
Septicflesh
Metal band from Greece
6
Power Quest
Power Quest
British power metal band
7
Fredrik Nordström
Fredrik Nordström
Swedish musician and record producer
8
Urban Breed
Urban Breed
Swedish singer
9
James Murphy
James Murphy
American guitarist
10
Bob Catley
Bob Catley
British musician and singer
11
Pathfinder
Pathfinder
polish symphonic power metal band
12
Kamelot
Kamelot
American power metal band
13
Liv Kristine
Liv Kristine
Norwegian singer
14
Benedictum
Benedictum
band
15
Doro
Doro
German singer and frontwoman of Warlock
16
Virgin Steele
Virgin Steele
American band
17
Sigh
Sigh
Japanese metal band
18
Corey Taylor
Corey Taylor
American musician
19
Naer Mataron
Naer Mataron
Greek band
20
Ensiferum
Ensiferum
Finnish folk metal band
21
Paradise Lost
Paradise Lost
British gothic metal band
22
Mountain
Mountain
American rock band
23
OSI
OSI
American progressive rock band
24
Mythos
Mythos
Canadian music project
25
Scott Gorham
Scott Gorham
musician, songwriter
26
Mille Petrozza
Mille Petrozza
German singer and guitarist
27
Anthrax
Anthrax
heavy metal band from USA
28
Amon Amarth
Amon Amarth
Swedish metal band
29
Horacio MacAlpine
Horacio MacAlpine
American musician and composer
30
Arch Enemy
Arch Enemy
Swedish melodic death metal band
31
Dragony
Dragony
Austrian metal band
32
Timo Tolkki
Timo Tolkki
Finnish musician
33
Between the Buried and Me
Between the Buried and Me
American metal band from North Carolina.
34
Dan Swanö
Dan Swanö
Swedish musician
35
Girlschool
Girlschool
British rock band that formed in the new wave of British heavy metal scene in 1978
36
Deftones
Deftones
American alternative metal band
37
Dream Evil
Dream Evil
Swedish metal band
38
Erik Rutan
Erik Rutan
American singer
39
Cruachan
Cruachan
Irish band
40
Steinar Sverd Johnsen
Steinar Sverd Johnsen
Norwegian musician
41
Ronnie James Dio
Ronnie James Dio
American heavy metal singer
Intro
musician
Genres

Babis "Bob" Katsionis (Greek: Μπάμπης Κατσιώνης; born February 17, 1977 in Athens, Greece) is the rhythm guitarist and keyboard player for the heavy metal/power metal bands Outloud, and Serious Black; until recently he was part of Firewind but as of 2020 he has since left due to personal reasons. He is considered to be Greece's most successful rock/metal keyboard player, being the only musician to ever win the same category "Best Keyboardist" in Greek Metal Hammer's Annual Readers' Polls for 5 years in a row (2006–2011). He is founder of Progressive Vision Group, a videoclip making company, which has produced more than 90 videos for rock and metal artists since 2002. In 2014 he started his own records label "Symmetric Records" to help bands and artists he produced/worked with in Sound Symmetry Studio release their works. To date, Symmetric Records has 14 official releases, with Warrior Path's "The Mad King" being the most successful.