It was written by the artists alongside producers Tay Keith and Ronny J with more production credits going to Eminem and Cubeatz.
In the first part of the song, the Tay Keith-produced instrumental that interpolates BlocBoy JB's "Look Alive", while Eminem imitates the flow of Migos' "Bad and Boujee".
The song disses rapper Machine Gun Kelly, who called Eminem's daughter, Hailie Jade, "hot as fuck" in 2012.
On September 3, 2018, Machine Gun Kelly released "Rap Devil", a response to Not Alike.
On September 14, 2018, Eminem responded to Rap Devil, releasing the diss track "Killshot".