I really like the theme song of Kaicho Wa Maid-sama...

I watched all 26 episodes in one day and immediately fell in love with Usui Takumi since he is really the anime version of ____-faced-duizzhang, Kris.

And oh! the songs of Vocaloid! <3

samurai champloo, antique bakery, zetsuai, gravitation, arakawa under the bridge, loveless, princess mononoke and spirited away... best OSTs in my list, you can choose any songs - better yet, listen to full OSTs :D

Hatsune Miku/Vocaloid -
Romeo and Cinderella
Karakuri Pierrot
Rolling girl
Last night, Goodnight
Light Song and the rest...
Hope this helping~~ ^^Y

Song in K-on and Angel Beats are awesome :3

Dragonball Z Angel. XD Dragonball Z songs r amazing xD

Not an anime theme song, but this one was also my favorite
Peach - Ai Otsuka
Do you know it?
Theme song for TTBY japan version, Hana Kimi

Yuzu- Reason

Oohayou from HunterXHunter and Nanka Shiwase from Flame of Recca~ ^^ nice songs ^^
if you want you can also download the OST of Ouran Host Club (anime ver) ^^

SAO songs :3

if it's a japanese song, i suggest Yui's Hello and Yui's Sayonara. but it's not from an anime. if it's from an anime i would suggest Sakura Kiss from Ouran Highschool Host Club OST.

Blue Bird
I luv it.

Colors by Flow

All Songs from ALi Project :D