Revenue Retrievin': Day Shift is the eleventh studio album by American rapper E-40. It was released on March 30, 2010, by Heavy on the Grind Entertainment and EMI. His twelfth album, Revenue Retrievin': Night Shift, was released on the same day.

Earl Tywone Stevens Sr., better known by his stage name E-40, is an American rapper. He is a founding member of the rap group The Click and the founder of Sick Wid It Records. He has released 26 studio albums to date, appeared on numerous movie soundtracks, and has also done guest appearances on a host of other rap albums. Initially an underground artist, his 1995 solo album In a Major Way opened him up to a wider audience. Beginning in 1998, he began collaborating with mainstream rappers outside the San Francisco Bay Area. He rose to higher mainstream popularity in 2006 with his single "Tell Me When to Go", which was produced by Lil Jon.