That song is about someone else stepping up into the place of a person who dies, and then that new person says "I'm a blackstar"
so it seems like the cover is actually representative of him stepping out of the pop world (and life) and giving the reins to the new blackstar, maybe that's Kendrick, I don't really know.
Black Star = Black Sun
It has occult connotations. The color black is also representative of a certain stage in alchemical transformation, namely death.
Written by an occultist, btw. Not conspiracy shit.
With a little fantasy it also spells Lamar. Might be a shoutout because he listened to it a lot in the process of making the album. I might be looking too much into it.
The vagueness of the cover leaves a lot of room for interpretation. I like to think it was a shoutout.
hrrm I was thinking of the whole thing but maybe just the thing under it as >>61665919 suggested. Just nice and small. Maybe not, never had a tattoo before, but I don't think I'd regret that one, because Bowie is forever.