I'm not gonna write the band's biography here, just some quick info.
Yellowcard is a pop-punk-alternative-rock band from Jacksonville, that have something that makes them different from the others, a violin.
Yellowcard's music style is not clearly defined, cuz they compose and play anything that sounds good with guitars and a violin, having a good variety of songs.
They released Ocean Avenue in 2003, that was really successfull, but in terms of musicality, that album had nothing to do with Light and Sounds (2005) and Paper Walls (2007), both albums being a kind of composing experimentations, that have really awesome songs.
They went on hiatus in 2008 and came back in September 2010. Then they released 'When you're through thinking, say yes' this march 22.
It's their most repetitive album since they didnt want to make experiments anymore, but... at least for me, its a FUCKING EAR ORGASM, really.
They came back to the catchy 4 chords scheme in chorus, but they overkilled them with a strength and a power that any other band can give. And the violin is really well written there.
Here's an example:
I cant stop listening to the whole album.
Enjoy