I don't see why Tinashe is such a problem.
That's just it, she doesn't add much, she is barely featured at all. I thought she did a nice smooth vocal delivery and added her own little touch. She was most likely featured to give Britney more exposure to the R&B market.
I think the video overall adds to the song. I love all the colors in the video and both Britney and Tinashe look very good. I think Britney is in the best shape she has been in many years.
