Jedward are at the centre of another X Factor row after reports that sound technicians were told to turn down their microphones.
A newspaper claims the technical tweak meant the twins' voices were drowned out by the backing track.
But X Factor bosses said all contestants had an "equal amount" of technical help for their performances.
Some people have criticised John and Edward's vocals but on Saturday they received loads of praise from judges.
An X Factor spokesperson said: "Technical support is standard for all artists when giving live vocal performances."
It's not the first time Jedward have been at the centre of controversy.
X Factor was criticised when the boys survived their sing-off against Lucie Jones after Simon Cowell let the public vote decide.
And on Saturday Calvin Harris stormed onto the stage with a pineapple on his head during John and Edward's performance, later apologising for the stunt.