Chu Chu / HellO

 is the fifth single by Nishiuchi Mariya. It was released on May 25, 2016, and peaked at #18 on the Oricon single chart.

CD

 * 1) Chu Chu
 * 2) HellO
 * 3) Chu Chu (Instrumental)
 * 4) HellO (Instrumental)

Limited Edition CD

 * 1) Chu Chu
 * 2) HellO

Limited Edition DVD

 * 1) Chu Chu -Music Video-
 * 2) HellO -Music Video-

CD+DVD Type A DVD

 * 1) Chu Chu -Music Video-
 * 2) Chu Chu -Making Video-

CD+DVD Type B DVD

 * 1) HellO -Music Video-
 * 2) HellO -Making Video-