Well if by why you mean how then pop is usauly separated from rock by the beat and insterments. Rock usauly has a much harder beat something you want to jam your head to when pop usauly makes you want do tap your feet and dance. Although it may sometimes be hard to tell the difference like with beat it by Micheal Jackson its more of a rock song than a pop song I think.
Another answer:Pop is faster and well girlyer and tends to be more upbeat than rock
Pop music
His music was typically classified as rock/pop
Pop Rock music began in the 1960s. It started in the US as well as the UK.
folk/ pop and rock folk/ pop and rock
Pop/rock
Pop music
pop music is about funk mix pop is not that funky,and not that rock
Rock Music
pop music
rock and pop music was in. the teens liked pop and the adults liked rock/
Pop Rock music began in the 1960s. It started in the US as well as the UK.
His music was typically classified as rock/pop
she is into rock and pop music
Pop rock music.
folk/ pop and rock folk/ pop and rock
It's more pop or pop rock.
The music group 'The Dimes' is an American music group from Portland, Oregon. The group is known for folk-pop music but also are involved in genres such as indie rock, alternative rock, pop rock and indie pop.