In June 2019, over seven years after splitting from Black Cards, Rexha teased a solo track featuring Wentz, titled "Heaven Sent".

Fall Out Boy went on hiatus in late 2009, with Wentz announcing his desire to take a break from music and concentrate more on being with his wife and child.

Wentz had said he was taking time off with his family, when he started being inspired again by such Jamaican reggae songs as Culture's "Two Sevens Clash" and The Gladiators' "Warriors".

[3][4][5] Wentz then contacted producer Sam Hollander (Gym Class Heroes, Cobra Starship, Hey Monday) and discussed the idea with him to mash up ska, dance and reggae with '80s British rock and pop to create a new experimental sound.

Wentz did not want to attempt to replace Patrick Stump (his bandmate in Fall Out Boy), and decided to go in a new direction taking a female vocalist instead – amateur singer Bebe Rexha.

This short European tour was preceded by three special North American dates on October 14, 15 and 16, 2010, which took place in Hartford, Connecticut, Providence, Rhode Island and Poughkeepsie, New York.

Since early October 2010, the band has announced and released multiple songs on various social network sites, such as Facebook and Vevo.

Wentz noted that he was aware that fans had been waiting for a while now to hear the disc, but the delay was necessary to line up support for the band at their label, Island/Def Jam.

[1] A day after, January 13, 2012, Bebe Rexha released a statement explaining that she left the band to explore opportunities as a solo artist.

Following the departure of Rexha, Wentz posted a formal statement on the band's website explaining the details of the split and how they planned to move forward, specifying that both he and Peterson would continue to remix other artists as well as hinting at the release of recorded material from their unreleased album.

[24] The mixtape featured remixes of several established acts, including Rihanna, Jay-Z, Skrillex, M83, Major Lazer, Waka Flocka Flame, and others.