LeBron James will now have a crown everywhere he goes -- 'cause the King just got his iconic "LJ" logo imprinted on his tooth!!
The Lakers shared a pic of James -- who's gearing up for his 20th NBA season -- on social media minutes ago ... showing the 4-time NBA champ sporting his new bling.
In the pic, you see James' signature "LJ" logo -- which was created to go on all his shoes and apparel when he signed his deal with Nike -- etched on his tooth.