1 ▁November ) ▁Th eme : ▁Summer ▁songs ▁C ele br ity ▁perform ers : ▁En rique ▁Ig les ias ▁featuring ▁Hav ana ▁Brown ▁(" He art be at ") ▁and ▁Mike ▁Pos ner ▁(" C ool er ▁Th an ▁Me ") ▁Group ▁performance : ▁" E v acu ate ▁the ▁Dance floor " ▁ ▁Jud ges ' ▁votes ▁to ▁eliminate ▁Ke ating : ▁Hay ley ▁Te al ▁– ▁said ▁that ▁she ▁lack ed ▁" energy ▁and ▁star ▁quality ", ▁cond rad ict ing ▁comments ▁he ▁made ▁in ▁earlier ▁weeks . ▁Im bru gl ia : ▁Luke ▁& ▁Jo el ▁– ▁back ed ▁her ▁own ▁act , ▁Hay ley ▁Te al . ▁Sebastian : ▁ ▁Hay ley ▁Te al ▁– ▁back ed ▁his ▁own ▁act , ▁Luke ▁& ▁Jo el . ▁Sand il ands : ▁Hay ley ▁Te al ▁– ▁commented ▁that ▁it ▁was ▁about ▁" who ▁is ▁going ▁to ▁be ▁an ▁icon ▁of ▁Australian ▁music ". ▁ ▁Week ▁ 8 ▁( 7 / 8 ▁November ) ▁Th eme : ▁Songs ▁from ▁Australian ▁artists ▁C ele br ity ▁ment or : ▁Mel ▁B ▁C ele br ity ▁perform ers : ▁Jason ▁Der ü lo ▁(" The ▁Sky ' s ▁the ▁Lim it ") ▁and ▁Jess ica ▁Ma ub oy ▁(" S aturday ▁Night ") ▁Group ▁performance : ▁" Stop " ▁with ▁Mel ▁B ▁ ▁Jud ges ' ▁votes ▁to ▁eliminate ▁Ke ating : ▁Mah og any ▁– ▁commented ▁that ▁Luke ▁& ▁Jo el ▁have ▁what ▁it ▁takes ▁to ▁sell ▁records . ▁Im bru