Giveon

R&B star Givēon is going to give it to you straight -- but also make it sound good. His love anthems are extremely personal tales written by him -- and they just happen to be TOXIC. TMZ caught up with Givēon outside "Jimmy Kimmel Live" this week, where he performed his new song, "I Can Tell"…

Giveon had royalty present during his concert in L.A. on Monday ... 'cause the R&B singer brought out Lakers superstar LeBron James in the middle of his show!! LeBron -- who was enjoying the Lakers' day off -- made a special guest appearance at the L.A. Live concert ... and judging from the…