`` I Hate U , I Love U '' Single by Gnash featuring Olivia O'Brien from the album Us Released February 17 , 2016 ( 2016 - 02 - 17 ) Format Digital download Recorded 2015 Genre Pop Length 3 : 46 Label Atlantic Warner Bros . Songwriter ( s ) Garrett Nash Olivia O'Brien Producer ( s ) Gnash Gnash singles chronology `` Come Back '' ( 2016 ) `` I Hate U , I Love U '' ( 2016 ) `` Something '' ( 2016 ) `` Come Back '' ( 2016 ) `` I Hate U , I Love U '' ( 2016 ) `` Something '' ( 2016 ) Olivia O'Brien singles chronology `` I Hate U , I Love U '' ( 2016 ) I Hate U , I Love U2016 `` Trust Issues '' ( 2016 ) Trust Issues2016 Music video `` i hate u , i love u '' on YouTube

Question: who wrote the song i hate you i love you
Answer: Garrett Nash