Tile doesn't go all the way to the ceiling

[drumz]

What do I do in this space? This is in my basement with 82" ceiling that is not level with the floor. There is a difference at the top of the tile to the ceiling from left to right that grows from 0 to 3/4" (excuse the blue tape, makes chalking a little easier).
Should I just mud it and paint the same color as the ceiling?
Any other ideas are much appreciated!

 

[bud16415]

I would get some PVC trim and trim it out.

 

[drumz]

I didn't know about that stuff, might be a good option, thanks!