Turns out, though the 1D tour got them exposure to the huge 1D fanbase, they weren't initially greeted with open arms as their opening act. Insert sadface here.
5SOS' Michael Clifford told Billboard magazine: "There were s**tloads of people being like, 'F**k this band, these guys are all s**t-ugly dips**ts. What are they doing on tour with One Direction, my perfect babies?"
Well...Look at 'em now! We're so glad they had that amazing experience with One Direction.