K-ON! is a slice of life anime about a group of high school girls forming a band in a light music club (K-ON!) The main thing that stands out in this to me is the music. It was surprisingly really good. The relationships between the girls are strong and develop nicely over the series. Unlike most slice of life animes this one has more of a plot than usual. It focuses on them getting ready for various concerts and school festivals. Seriously the music is just fantastic. Its not really you're typical J-pop stuff. Its has a more rock a little punk in it. But it seriously is awesome. And the music videos they use for the ending theme (as above) are tons better than anything put out by any main stream pop artists over here.