Yes, believe it or not, chalk paint EeeeVEN sticks to LEATHER.
I recently purchased this neat old table at an auction, but didn't know how I'd paint it since the top surfaces were leather. First I thought I'd tape it off and just paint the wooden areas, but I didn't like that look. Sooooo, thought I'd just try painting it.
These are the AFTER pics.
Click below to see the before.