There are so many great hard rock and heavy metal bands that begin with the letter “D.” Today the Gears of Rock presents the 10 best bands in history to start with D:

#1.  Def Leppard

#2.  Deep Purple

#3.  Dio

#4.  Diamond Head

#5.  Dream Theater

#6.  Danzig

#7.  Down

#8.  Deftones

#9.  Dokken

#10.  Disturbed