X Factor group Tru Colourz have been told to leave the show because one of the girls was too young to take part.
The girl band were last seen jumping for joy after making it through to final 24.
But they've been told to leave the competition after the show producers found one of the girls was under 16, the age limit for the competition.
Four piece Harmony Hood will replace them and Tru Colourz have been encouraged to apply again next year.
Louis Walsh, who is this year's group mentor, spoke to the girls - that footage will be shown on next week's programme.