1 6 ▁Summer ▁Olympics . ▁ ▁Tour ▁▁ ▁One ▁D irection ' s ▁debut ▁head line ▁UK ▁concert ▁tour , ▁the ▁Up ▁All ▁Night ▁Tour , ▁was ▁officially ▁announced ▁on ▁ 2 7 ▁September ▁ 2 0 1 1 . ▁The ▁tour ▁began ▁on ▁ 1 8 ▁December ▁ 2 0 1 1 ▁in ▁Wat ford , ▁England ▁and ▁ended ▁ 2 6 ▁January ▁ 2 0 1 2 ▁in ▁B elf ast , ▁Northern ▁Ireland . ▁Sh ows ▁in ▁the ▁UK ▁and ▁Ireland ▁were ▁an ▁instant ▁success — many ▁rum ored ▁to ▁have ▁sold ▁out ▁in ▁under ▁ 1 0 ▁seconds . ▁In ▁February ▁ 2 0 1 2 , ▁One ▁D irection ▁announced ▁an ▁Austral asia ▁leg , ▁the ▁tour ▁dates ▁set ▁for ▁April ▁ 2 0 1 2 , ▁set ▁to ▁visit ▁cities ▁Sydney , ▁Br is b ane , ▁Melbourne , ▁A uck land ▁and ▁Well ington . ▁Once ▁the ▁first ▁leg ▁of ▁the ▁tour ▁was ▁complete , ▁the ▁band ▁joined ▁Big ▁Time ▁R ush ▁as ▁an ▁opening ▁act ▁on ▁the ▁Better ▁With ▁U ▁Tour . ▁On ▁ 2 1 ▁March ▁ 2 0 1 2 , ▁One ▁D irection ▁announced ▁an ▁extended ▁North ▁American ▁leg ▁of ▁the ▁tour . ▁The ▁North ▁American ▁leg ▁was ▁set ▁to ▁start ▁on ▁ 2 4 ▁May ▁ 2 0 1 2 ▁and ▁compr ise ▁ 2 6 ▁shows . ▁Short ly ▁after ▁the ▁announ cement , ▁British ▁recording ▁artist ▁Ol ly ▁M urs ▁was ▁confirmed ▁to ▁be ▁the ▁opening ▁act ▁for ▁select