Under appreciated band...? I'm sorry, but a band with more than 50 million views on their youtube videos is not an under appreciated band.
It depends on how you view appreciation. When the name Paramore gets tossed around, most people think "commercial, radio friendly, scene, female fronted band". If you asked someone to described a "typical" Paramore fan, they would probably described a young "scene" girl. I think they're under appreciated for their musical integrity and talent as a rock band. I feel as if a lot of people just pass them over and view them as some fade or flash in the pan. I think they're criminally under-rated in that aspect. They're a great rock band.