I did not watch the Grammys but I heard she made an appearance (recorded? linked?)
My speculation: Perhaps the reason she wasn’t there in person was because she is wearing an ankle bracelet and/or is under house arrest.
Anybody with info on this?
It's just a whole lot easier to provide security if she doesn't actually show up in person at the Grammys.
She, and others, appeared in a pre-recorded, video skit in which she read excerpts the the anti-Trump book: "Fire and Fury".