Tweens and teens, get ready to have your mind blown!
Wow!! Got to see @justinbieber & @taylorswift13 write a song together last night!! SMASH!!!! SMASH!!! SMASH!!! Let's do it again Yall!!! (sic)
@taylorswift13 You and Justin Killed that writing last night!!! SMASH!!!!!!!
Sounds like it's gonna be another catchy earworm! Ahh, we wonder what the video will be like….
Hmm, no heels for TayTay!
[Image via Ray Garbo/Ian Wilson/WENN.]