Ray J wants to remind the world, he 'hit it first.'

The rapper's new tune is dropping some big hits on Kanye and Kim's relationship. Seems someone might be having jealous ex syndrome.

Back in 07, Ray arguably made Kim K. a star with her appearance in his sex tape. In his new tune 'I Hit it First' he doesn't name drop Kim specifically, but we can put two and two together.

In the clip of the unreleased song, Ray drops in a Kanye diss:

'I had her head going north and her a** going south, but now baby chose to go west.'

Way to be discrete, Ray.