This is Carly Rae Jepsen, not Mariah Carey I thought they were fine.
But I also agree that the ad-libs during the last chorus should've been more hooking. Overall it's an amazing song, I hope it finds success because it just slays so hard.
carly totally has another smash on her hands lol. and if not, i'll be shocked. this totally sounds like something taylor swift would put on 1989, it just has that inescapable catchy production