From left to right: Yoko, Michiko
|Michiko (elder sister)|
Yoko (younger sister)
Twill 「トゥワイル Tuwairu」 is a Japanese R&B duo who originate from Fukuoka, composed of identical twins Michiko and Yoko. They performed the second and third opening themes for Digimon Xros Wars entitled "New World" and "STAND UP" respectively., becoming the first female artists to do an opening theme for a Digimon series. The name of the group is derived from a portmanteau of the words "twin" and "will".