Killing Me

Killing Me is the debut single of X4. It was released on October 7, 2015, and was the last single that features member SJ after he left the group in September 2015.

Single information
Catalog number: Distributor: Teichiku Entertainment
 * TECX-1 (CD + DVD Limited Edition A)
 * TECX-2 (CD + DVD Limited Edition B)
 * TECX-3 (CD Regular Edition)
 * 00CX-1001 (【Full production limited edition】Event venue limited edition)
 * TEX-1 [Event venue limited edition (X4 ver.)]
 * TEX-2 [Event venue limited edition (YUYA ver.)]
 * TEX-3 [Event venue limited edition (KODAI ver.)]
 * TEX-4 [Event venue limited edition (T-MAX ver.)]
 * TEX-5 [Event venue limited edition (SJ ver.)]

CD + DVD Limited Edition A / B

 * 1) Killing Me
 * 2) MONSTER
 * 3) Killing Me (instrumental)
 * 4) MONSTER (instrumental)

CD Regular Edition

 * 1) Killing Me
 * 2) MONSTER
 * 3) musicoverdose -X4 ver.-
 * 4) Killing Me (instrumental)
 * 5) MONSTER (instrumental)
 * 6) musicoverdose -X4 ver.- (instrumental)

Event venue limited edition (X4 ver.)

 * 1) Killing Me
 * 2) Killing Me (instrumental)

Event venue limited edition (YUYA ver.)

 * 1) Killing Me
 * 2) Killing Me (YUYA main ver.)

Event venue limited edition (KODAI ver.)

 * 1) Killing Me
 * 2) Killing Me (KODAI main ver.)

Event venue limited edition (T-MAX ver.)

 * 1) Killing Me
 * 2) Killing Me (T-MAX main ver.)

Event venue limited edition (SJ ver.)

 * 1) Killing Me
 * 2) Killing Me (SJ main ver.)

CD + DVD Limited Edition A

 * 1) 「Killing Me」MUSIC VIDEO
 * 2) 「MONSTER」LIVE VIDEO (1st Tour FINAL 15.4.29)

CD + DVD Limited Edition B

 * 1) 「Killing Me」MUSIC VIDEO (dance edit)
 * 2) 「声にしたなら」MUSIC VIDEO

Featured members

 * YUYA
 * KODAI
 * T-MAX
 * SJ