Jazzy and Ruby have been branded 'the new Jedward' after an eye-catching, screech-filled audition that left judge Cheryl Fernandez-Versini with her head in her hands.
Watch Blonde Electric's cover of 'Do It Like A Dude' below:
The siblings' Jessie J cover had Louis Walsh grinning from ear to ear, but the other judges seem a bit more conflicted by the boisterous pairing.
Simon Cowell told them: "Imagine the biggest blackboard in the world, and you've got eight people dragging their nails down it. Times ten. That's how irritating you were."
However, despite their doubts, Cowell and Mel B sent the girls through to the next stage, with only Cheryl giving them a 'no'.
Before giving them a 'yes' vote, Cowell commented: "This might be the biggest regret of my career."
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Jazzy and Ruby didn't appear to be concerned about the mixed response, celebrating their TV debut with their new fans on Twitter.
Holy Crap! So overwhelmed right now.... Cannot believe the LOVE on twitter. Best day of our lives! Unbelievably thankful...600 followers!!
ā BlondeElectric (@BlondeElectric) August 30, 2014
Did you fall for Blonde Electric's charms? Or were you covering your ears? Let us know below:
Gallery: X Factor premiereThe X Factor 2014 Episode 1
