: It reached the top 40 in several countries, including the UK, where it peaked at #32 based on digital downloads alone.
"You Don't Know" is a landmark hip-hop collaboration released in as the lead single from the Shady Records compilation album, Eminem Presents: The Re-Up . It features Shady/G-Unit heavyweights Eminem , 50 Cent , and Lloyd Banks , alongside then-new signee Ca$his . 8D Audio Technology : It reached the top 40 in several
: 8D audio uses binaural panning effects to simulate the feeling of the music "moving" around the listener's head in a 360-degree space. including the UK