Whitney's estate asked Christina to do this performance so that they could promote the hologram people, talking ish about Xtina need to do one! What real vocalist is going to say no to Whitney's people? Also if you take a look at the music industry and how they want to white wash R&B and black singers, then you'll understand why the family's of the deceased legends do, holograms and continue do things to keep the memories of them present, if not trust me when I say that the industry will make sure our black icons are forgotten! At least now we know that Whitneys family are serious about making sure the quality of things they choose to keep whitney in our memories is of high standard!