They were formed in 2013 originally as the trio Third Degree, who competed in the fifth season of The X Factor Australia and were the tenth contestant eliminated.

[1] All three members originally auditioned on the show as solo contestants and progressed to the super bootcamp stage, where they got eliminated.

Third Degree entered in the third day of bootcamp, where they sang "No Diggity" by Blackstreet to the judges and a live audience of one thousand.

[11] In the semi-finals, Third Degree sang "Give Me Everything" by Pitbull and "Pound the Alarm" by Nicki Minaj, gaining positive reviews from the judges.

[13] After The X Factor ended, Third Degree received a recording contract with Sony Music Australia and released their debut single "Different Kind of Love" on 1 November 2013.

[20] On 7 March 2014, it was announced that Kelebek had left the group to pursue a solo career, leaving Gulisano and Rodrigues as a duo.

[28] Gulisano cites Beyoncé, Jessie J, Michael Jackson and The Black Eyed Peas as her musical influences.

[1][2] He auditioned for The X Factor singing "DJ Got Us Fallin' in Love" by Usher, and progressed to the super bootcamp stage.

[1] Kelebek cites Michael Jackson, Eve, Beyoncé, Jessie J, Amy Winehouse, Missy Elliott, Slaughterhouse and The Black Eyed Peas as her musical influences.

[1] On 7 March 2014, Third Degree's X Factor mentor Natalie Bassingthwaighte announced on her Twitter account that Kelebek had left the group.