Haha, folk? I always imagine hillbillies on porch with a banjo, wood block etc.
You've got me wondering though. Here's the genres Wikipedia says my favourite bands are:
Relient K: Christian rock, alternative rock, pop punk, punk rock
Owl City: Electronica, synthpop
Eisley: Indie rock, Indie pop
Yellowcard: Alternative rock, pop punk, punk rock, hardcore punk
Morella's Forest: noise pop / shoegazing
RED: Alternative rock, Christian rock, hard rock, heavy metal, post-grunge
Waking Ashland: Alternative rock, indie rock, piano rock
We Shot the Moon: Rock, Indie rock, Piano rock
Sky Sailing: Acoustic, synthpop
Eleventyseven: Christian Rock, Power Pop, Synthpunk, Pop Punk
The Beatles: Rock, pop
I guess what makes me hesitate labelling them as 'pop' is that it automatically makes me think of Brittany Spears, the Backstreet Boys, Katy Perry etc.
Where sky and water meet,
Where the waves grow sweet,
Doubt not, Reepicheep,
To find all you seek,
There is the utter east.