I will limit my current favorites to 3...ogm
01.
Maki Goto - Daite yo! PLEASE GO ON, LIKE A GAME, Ima ni Kitto...In My LIFE
02.
SWEET BLACK feat. MAKI GOTO (hah..)- Fly away, Lady rise
03.
Ami Suzuki - all night long, white key (or maybe OUR DAYS), FREE FREE
04.
Namie Amuro - Chase the Chance, Don't Wanna Cry, GO! GO! ~Yume no Hayasade~
05.
Ayumi Hamasaki - A (four songs...but w/e), Dearest, SURREAL
06.
Tomomi Kahala - Just a real love night, I'm Proud, PRECIOUS
07.
SMAP - SHAKE, $10, Love Loser
08.
globe - Love again, FACE, SWEET PAIN
09.
KAT-TUN - Keep the faith, NEVER AGAIN, Yorokobi no Uta
10.
ULFULS - Gattsu Da Ze!!, Naketekuru, Banzai "Suki De Yokatta"
11.
Koda Kumi - BUT, Butterfly, Star
12.
Petitmoni - BABY! koi ni KNOCK OUT!, Chokotto LOVE, WOW WOW WOW
13.
Morning Musume - Furusato, Koi no dance site, Renai Revolution 21
14.
W - Miss Love Tantei, SEXY SNOW, Jinx
15.
Mini Moni- Mini Moni Jankenpyon!, Minihamuzu no Ai no Uta, Mirakururun Grand Purin!
16.
hitomi - Japanese girl, by myself, SAMURAI DRIVE
17.
Coconuts Musume - Jouentsu Yuki Mirasen, Zurai Onna (english version), Halation Summer
18.
Tanpopo -Koi wo Shichaimashita!, Ōjisama to Yuki no Yoru, Otome Pasta ni Kandō
19.
Anna Tsuchiya - Crazy World, SLAP THAT NAUGHTY BODY, Somebody help me
20.
Leah Dizon - Love Paradox, Koi Shiyou, Communication!!!
21.
Akina Nakamori - DESIRE, TATTOO, Aibu
22.
Kanjani 8 - Sukiyanen, Osaka., Zukkoke Otokomichi, Misetekure
23.
Arashi - Happiness, Step and go, Kitto Daijoubu
24.
Utada Hikaru - COLORS, Automatic, First Love
25.
V6 - MADE IN JAPAN, TAKE ME HIGHER, MUSIC FOR THE PEOPLE
26.
Bonnie Pink - Private Laughter, Heavens Kitchen, A Perfect Sky
Forgot a few but I feel like stopping. Everyone after Ayu was whoever came to mind first :>