In January 2015, it was announced that Jessie J would join the coaching line-up as well Delta Goodrem, who would return to the panel after a one-season hiatus; replacing former judges will.i.am and Kylie Minogue, respectively.
Prior to the Super Battles, each coach chose two of their artists to go straight through to the live shows via a fast pass.
In addition to the songs performed live, digital versions of the songs that the eliminated contestants in the top 16 had performed were released, these being "Flame Trees" (Cath Adams), "Everybody's Free" (Nicolas Duquemin), "A Change Is Gonna Come" (Scott Newnham) and "What I Did for Love" (Tameaka Powell).
During this week, the contestants compete for a spot in the top 4 (one per team, selected by their coach) to go directly to the second round of voting in the semi-final.
Once again, digital versions of the songs that the eliminated Top 12 contestants had performed were released, these being: "What Kind of Man" (Peta Evans-Taylor), "Feeling Good" (Gail Page), "Seasons" (Rik-E-Ragga) and "The Power of Love" (Amber Nichols).