X Factor duo back together with new music after horrendous audition

X Factor duo reveal they've reunited to release new music after admitting they suffered a 'mental breakdown' following a toe-curling audition. The duo famously auditioned for the ITV show back in 2008, but their reggae-inspired take of Mysterious Girl was torn to shreds by the judges, and they've been frequently branded one of the worst acts in the show's history.