the first music group that popped into my head that starts with a k is kiss
korn Katie perry kerli
korn Katie perry kerli
korn Katie perry kerli
kerli and Katy Perry aren't groups. they are individual people
Know Doubt Killswitch Engage
Kula Shaka. but they're crap
Karaoke is a kind of music. It begins with K.
karaoke
knot
Kraftwerk.
A music group that begins with an "M" is Metalica. Motley Crue
U2
inxs
Hinder
Akon Avalon
Arcade Fire