"I think she is one of the most exciting new artists out there, and she's here with us tonight. I'm really serious about this, it's her first time in a stadium, are you ready to be the loudest stadium she's ever experienced? All right, I believe in you Foxborough, and I'm very, very honoured to say that Hayley Kiyoko is here tonight!"
(Lmao thanks to my friend who watched the video and transcribed it for me. #nospoilers.)