Pucchi Moni -
Pittari Shitai X'mas!
BONNIE PINK -
CHAIN (and the rest of her x-mas mini album)
Maki Goto -
Sans Toi Ma Mie
Ami Suzuki -
Happy New Millennium
Ayu - JEWEL, No way to say, and Together When...
Namie Amuro - White Light
Satoda Mai with Goda Kayodai -
Mou sugu Christmas
there's more but i can't remember atm!