Friday Night Party

 is the 11th single by X21. It was released on March 14, 2018, and peaked at #9 on the Oricon single chart.

CD Only CD

 * 1) Friday Night Party
 * 2) Call me
 * 3) My Darling
 * 4) Friday Night Party (Instrumental)
 * 5) Call me (Instrumental)
 * 6) My Darling (Instrumental)

CD+DVD & Limited Edition CD

 * 1) Friday Night Party
 * 2) Call me
 * 3) Friday Night Party (Instrumental)
 * 4) Call me (Instrumental)

Digital

 * 1) Friday Night Party
 * 2) Call me
 * 3) My Darling
 * 4) Friday Night Party (Instrumental)
 * 5) Call me (Instrumental)
 * 6) My Darling (Instrumental)
 * 7) Asu e no Sotsugyou 2017 (明日への卒業 2017)
 * 8) Who is X!? 2017

DVD

 * 1) Friday Night Party (MUSIC VIDEO)
 * 2) Friday Night Party (MUSIC VIDEO Off-shot)