In a new song leaked Monday, the rapper Jay Z reminds famously caustic conservatives like Bill O'Reilly and Rush Limbaugh that we're living in a new era, and advises that they get with the program.

"Please tell Bill O'Reilly to fall back," he raps. "Tell Rush Limbaugh to get off my balls, it's 2010, not 1864 ... Got a black president, got green presidents/ Blueprint's in my white iPod, black diamonds in my Jesus piece, my God."

Featuring Dizzy Drake and produced by Timberland, "We Off That" takes swipes and names names, but it's mainly just a good ol' fashioned rap song. And it proves that hip hop is today what folk music was 40 years ago: a way to make a point, tell a story, and ideally, shake things up.

Well, he managed to elicit a response from Limbaugh on his radio program. After calling Bill O'Reilly a "moderate," Limbaugh said he doesn't "think [he's] ever been mentioned in a rap song. I guess this means I've made it."

[Image: Boston.com]