Tuhia he haere tonu mo tenei irava - "Kotahi te mea" i whiwhi i nga arotake pai mai i nga kaitohutohu puoro, i whakamoemiti i te nuinga o te huarahi o te ara. I eke te kotahi ki te tekau tuatahi i Ahitereiria, Ireland me te United Kingdom, i te wa e eke ana ki nga taumata wha tekau i Belgium (Flanders), Canada, New Zealand, me te United States. Kua whakamanahia te nama e te Rōpū Ahumahi Whakataunga o Amerika (RIAA) mo te tuku o te kotahi miriona kape. I whakahaeretia e Declan Whitebloom, ko te ataata puoro e whai ake nei e whakaatu ana i te One Direction e mahi ana i roto i te taone nui o Raanana. I whakatangihia e te roopu "One Thing" i runga i nga kaupapa pouaka whakaata me nga haerenga konohete nui e wha: Up All Night Tour (2011<unk>12), Take Me Home Tour
(2013), Where We Are Tour (2014) me On the Road Again Tour (2015).