New Divide In Dallas

Does anyone know what happened to Emily in the beginning of New Divide? At first it looked like she forgot she had to sing as she ran across the stage to grab the mic just in time and then it sounded like she was choking on something and at one time had to spit something out of her mouth. I can imagine how she could get caught up listening to these songs on stage and then saying oh shit I'm the singer. Lol.