1950's 4 part harmony.
Louis Tomlinson and the rest of One Direction sing Pop music mostly.
'bout 'hillybillys'.
Alternative Metal.
chinese and gamelan music
Nickelback is classed as a rock band.
Parody music
They sing like pop music, but they also sing rock with Rammestei, their current music is considered pop-electronic
cool music
they used to sing Latin Pop
Pop
Reggae.
Rock!
Rap
zac efron music
Louis Tomlinson and the rest of One Direction sing Pop music mostly.
slows
Reggae.