Humming Bird

 is the fifth single by hy4_4yh.

Tracklist

 * 1) Humming Bird ～Give me song～2 (ハミングバード～Give me song～2)
 * 2) Hello! Baby!! (ヘロー！ベイベー！！)
 * 3) 20 Flight to Rock

Featured Members

 * Yukarin
 * Chanyumi
 * Sadachi