Whats the best way to hide home theater speaker wires?

I have a home theater system and I want to hang some speakers on the walls but the problem is, is that the speaker wires hang from the bottom and I have a white wall. It looks ugly like if ACTUALL wires were hanging out of the walls. What would be the best way to hide the wires?
Also, I CANNOT PUT FURNITURE TO COVER UP THE WIRES.

PS: I already bought the home speaker set for a ton of cash, and I’m sure not as hell planning to return or buy some different set.