X4

X4 is a 4-member male vocal and dance group formed by Matsushita Yuya in December 2014. The group is managed by Teichiku Entertainment Inc. and signed to this agency's XVISION label.

Current members

 * YUYA (leader)
 * KODAI
 * T-MAX
 * JUKIYA

Former members

 * SJ
 * SHOTA

Studio singles

 * [2015.10.07] Killing Me
 * [2016.03.30] Party Up!!
 * [2016.12.14] Kizuna

Studio albums

 * [2016.05.25] Funk,Dunk,Punk
 * [2017.03.08] Xross Mate
 * [2018.04.18] XXXX
 * [2019.07.17] X-tra BEST

Mini albums

 * [2016.10.05] 4 My Baby
 * [2017.10.04] XTIME
 * [2018.12.19] CROSSROAD

Digital singles

 * [2015.06.13] Koe ni shita nara
 * [2015.11.26] Snow Flakes
 * [2016.01.27] obsession
 * [2016.02.24] IDKYN (I don’t know your name)
 * [2017.01.11] i want you back
 * [2017.02.01] O
 * [2017.03.30] Mou Ichido ano Sora e (with DREAM MAKER)
 * [2017.07.11] Saigo no Kotoba
 * [2018.08.22] Let Me Love You Down

Indie album

 * [2015.02.22] XVISION

Trivia

 * The group debuted in 2015 with their first single "Killing Me".
 * After member SJ left in September 2015, two members SHOTA and JUKIYA were added in early 2016. Later in December 2017, SHOTA also left the group.
 * Matsushita Yuya was a soloist before he formed X4.