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Our hearts go out to the band and the Mixers.
Little Mixannouncedthe news on their official Twitter account and Nelson herselfpenneda heartfelt note to supporters on Instagram.
I find the constant pressure of being in a girl group and living up to expectations very hard.
The band was formed nine years ago in season eight ofThe X Factor UK.
They went on to be thefirst group to ever winthe series.
