"I Just Wanna Love U" is the 1st single off "The Dynasty: Roc La Familia" LP by Jay-Z.

The song use known style beat and music by The Neptunes and is featuring Pharrell Williams. Dirty Uncensured video:

Jay-Z's first part of the first verse is actually a remake/cover for Notorious B.I.G's rap verse from the hip hop classic "World Is Filled" (from "Life After Death" album) -