0
Henjo Richter
Henjo Richter
German musician
1
Kai Hansen
Kai Hansen
German musician
2
Dirk Schlächter
Dirk Schlächter
German musician
3
Michael Kiske
Michael Kiske
German singer
4
Helloween
Helloween
Power metal band
5
Iron Savior
Iron Savior
German power metal band
6
Primal Fear
Primal Fear
German power metal and speed metal band
7
Unisonic
Unisonic
German band
8
Stormwarrior
Stormwarrior
German band
9
Ralf Scheepers
Ralf Scheepers
German singer
10
Angra
Angra
Brazilian power metal band
11
Avantasia
Avantasia
German power metal band
12
Heavens Gate
Heavens Gate
band
13
Beast in Black
Beast in Black
heavy metal band
14
Holocaust
Holocaust
Scottish metal band
15
U.D.O.
U.D.O.
German heavy metal band
16
Sinner
Sinner
German band
17
Judas Priest
Judas Priest
British heavy metal band
18
Iron Angel
Iron Angel
German band
19
Rob Halford
Rob Halford
English heavy metal singer
20
Les Binks
Les Binks
Northern Irish drummer
21
Roy Z
Roy Z
American guitarist
22
Piet Sielck
Piet Sielck
German musician
23
Al Atkins
Al Atkins
English heavy metal singer
24
HammerFall
HammerFall
Swedish heavy metal band
25
Michael Weikath
Michael Weikath
German musician
26
Six Feet Under
Six Feet Under
American death metal band
27
Tim "Ripper" Owens
Tim "Ripper" Owens
American heavy metal singer
28
Mat Sinner
Mat Sinner
German musician and record producer

Gamma Ray is a German power metal band from Hamburg, founded and fronted by Kai Hansen after his departure from power metal band Helloween. He is the band's lead vocalist, guitarist and chief songwriter. Between 1990 and 2014, Gamma Ray recorded eleven studio albums.