My opinion on the whole Taylor/Justin duet:
I think it’s fine. Seriously. I know some of you don’t like Justin, and that’s okay, I respect that. I personally don’t have an issue with the dude. I mean, I’m not a super fan, but I do like a few of his songs. I don’t see the big deal if Taylor and him sing together. They are friends, they are in the same industry, why not? Taylor and John Mayer sang together and that is a great song.
Just sit back and see what plays out. Everything will be okay.