Music·Posted on Apr 10, 201515 Iconic Things That Happen At An Ariana Grande ConcertI went to the pint-sized pop star's Honeymoon Tour stop at The Forum, and this is what happened.by Sam StrykerBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. You probably won't know who the openers are. View this photo on Instagram 2. So many teens will be there. Like SO many teens. View this photo on Instagram 3. (Also their parents will be there too.) View this photo on Instagram 4. Everyone will be wearing cat ears! View this photo on Instagram 5. Random celebs might be in the crowd! View this photo on Instagram 6. The concert will start out with a "Bang Bang." View this photo on Instagram 7. The stage setup will just be OK, especially compared to other female pop stars. 8. Ari's vocals will actually be pretty decent live, TBH. View this photo on Instagram 9. But (LOL) you won't understand every word she sings. View this photo on Instagram 10. And her dance moves? They'll be pretty slick. View this photo on Instagram 11. Even though Big Sean may not be there...he's like, still THERE. View this photo on Instagram 12. There might be a surprise guest performer... View this photo on Instagram 13. ...AND JUSTIN BIEBER MIGHT ALSO SHOW UP. View this photo on Instagram 14. He could perform some of his hits, too! View this photo on Instagram 15. Ariana will close with her two biggest hits. View this photo on Instagram #KilledIt, Ari! Tap to play GIF Tap to play GIF