<prompt> Tlatša polelo e latelago: Ka May 21, 2017, The Chainsmokers e ile ya bapala Young  <response>: Difoka tša Mmino tša Billboard tša 2017. Gape ba ile ba dira koša ka 2017 Jingle Bell Ball ka The O2 Arena ka London ka Sontaga 10 December 2017. 