X4

X4 was 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.

The group disbanded on March 31, 2020.

Final line-up

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

Former members

 * SJ
 * SHOTA

Studio albums

 * 1) [2016.05.25] Funk,Dunk,Punk
 * 2) [2017.03.08] Xross Mate
 * 3) [2018.04.18] XXXX
 * 4) [2019.07.17] X-tra BEST

Indie album

 * 1) [2015.02.22] XVISION

Mini albums

 * 1) [2016.10.05] 4 My Baby
 * 2) [2017.10.04] XTIME
 * 3) [2018.12.19] CROSSROAD
 * 4) [2020.03.25] Cryoni"X"

Singles

 * 1) [2015.10.07] Killing Me
 * 2) [2016.03.30] Party Up!!
 * 3) [2016.12.14] Kizuna (キズナ)

Digital singles

 * 1) [2015.06.13] Koe ni shita nara (声にしたなら)
 * 2) [2015.11.26] Snow Flakes
 * 3) [2016.01.27] obsession
 * 4) [2016.02.24] IDKYN (I don’t know your name)
 * 5) [2017.01.11] i want you back
 * 6) [2017.02.01] O
 * 7) [2017.03.30] Mou Ichido ano Sora e (もう一度あの空へ) (with DREAM MAKER)
 * 8) [2017.07.11] Saigo no Kotoba (最後の言葉)
 * 9) [2018.08.22] Let Me Love You Down

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.