"When One Direction left the stage after seven songs, a noticeable portion of the crowd joined them ... Despite BTR's Herculean 75-minute effort, it seemed most fans preferred the simpler approach of warm-up act - or should we say, co-headliner - One Direction.
"At least one band's career direction is on the rise. Bieber beware, and parents, guard your wallets."Source: http://www.toronto.com/blog/post/714824--one-direction-big-time-rush-concert-review
It makes you think "What If".............If their label could go back in time, I think they would have done things differently.
One Direction as the headliner of their own Tour. (Big Time Rush will have their own separate tour). Judging from the tour footage on Youtube, there is significant demand for One Direction tickets.