AKB48 - Aitakatta
AKB48 - Romance, Iranee
SKE48 - Gomen ne, Summer
Team K Stage 6 - Kokoro no Hashi no Sofa
Team B Stage 4 - Kuchi Utsushi no Chocolate
Buono! - Honto no Jibun
Buono! - Renai Rider
Buono! - Cafe Buono
Buono! - My Boy!
Berryz Koubou - Anata Nashi de wa Ikite Yukenai
Berryz Koubou - Special Generation
Berryz Koubou - Dakishimete Dakishimete
Morning Musume - Koi no Dance Site
Morning Musume - SEXY BOY ~Soyokaze ni Yorisotte~
Morning Musume - Iroppoi Jirettai
Sakuragumi - Sakura Mankai
Morning Musume - Moonlight night ~Tsukiyo no Ban da yo~
Morning Musume - Joshi Kashimashi Monogatari
Morning Musume - Ii Koto Aru Kinen no Shunkan
C-ute - Ooki na Ai de Motenashite
C-ute - Tokaikko Junjou
C-ute - FOREVER LOVE
S/mileage - Yume Miru 15sai
Def.Diva - Suki Sugite Baka Mitai
T-ara - Roly Poly
T-ara - Bo Peep Bo Peep
2NE1 - Clap Your Hands
Wonder Girls - Tell Me
SNSD - Tell Me Your Wiah (Genie)
SNSD - Gee
Brown Eyes Girls - Abracadabra
Don't know, might be more, but these are the ones I remember so far... Now, off to my last exam.