1.One Direction. Why? Because I love them!! they are cute!! <33 :D
2. Ariana Grande <33 I love Ari! <3 She's my idol! I love this girl! :) She rocks!! :D <33 :D
3.I don't know..
<3 *~Vik~* <3 Love..
It's not what the mind thinks.. <3
But it's how the heart feels.. <3
For all of you guys saying One Direction or Big Time Rush, I doubt it will happen. BTR performed in 2011 and 1D performed in 2012. I don't think they'll have them perform again. I think Ariana Grande, Austin Mahone, and Little Mix should perform. I predict that Ari's gonna perform, though.