Sing & Smile!!

'''Sing & Smile!! '''is the first single by QU4RTZ, a sub-unit under Nijigasaki High School Idol Club. It on February 12, 2020.

Tracklist

 * 1) Sing & Smile!!
 * 2) Beautiful Moonlight
 * 3) Sing & Smile!! (Off Vocal)
 * 4) Beautiful Moonlight (Off Vocal)
 * 5) Valentine Party (バレンタインパーティー) (Drama Part)