Waihangahia tētahi putanga matatini ake o tēnei rerenga kōrero I mua i tana whakamātautau mō te'' The X Factor ', he wāhanga a Callahan o tētahi rōpū kōtiro i whakahaerehia e Geri Halliwell, i mua i tana wehenga i te Pipiri 2011 ki te haere takitahi.
Ae ra, ko te putanga matatini ake o te rerenga korero ko "I mua i tana whakamatautau mo te 'The X Factor', he waahanga a Callahan o nga roopu rereke tae noa ki te whakatau ki te haere takitahi i te tau 2012, ka tukuna tana tuatahi 'Runaway Train' i te Tihema 2012. "