In support of the upcoming releases of E-40's Revenue Retrievin' Nightshift and Dayshift albums, the Bay Area rapper is launching a contest, in which he will be giving fans, producers, DJs, and MCs the chance to land an official remix of one of his songs.

The competition, which 40 has dubbed "The Server" Remix Contest, starts Thursday (March 11) and will last until April 8th ... and the winner will win an official digital release of their "The Server" remix.

This is how it works.

Download the vocal and instrumental tracks from "The Server" right here (via MediaFire.com), and create your own remix of the track.

Contestants can either use "The Server" vocals on a different beat/track of their choice, or can take its original instrumental track and spit their own verse alongside 40's.

After your remix is done, submit it to E40remixcontest@gmail.com. From there, E-40 himself will go through the remixes and choose one he wants to sell digitally.

Also make sure to keep the March 30th date saved, because this is when E-40's albums, Revenue Retrievin' Nightshift and Dayshift, both hit stores.

The album features guest appearances from the likes of Snoop Dogg, Gucci Mane, Too Short and Mistah Fab, as well as some of his Bay Area conglomerate such as B-Legit, Messy Marv, Dem Hoodstarz, Ya Boy, The DB'z, Turf Talk, Clyde Carson, Husalah and Droop-E.