Wendy's CEO Todd Penegor admitted the mixtape was pure marketing.
"It's really about telling our food story, that we're fresh, never frozen, and we called out a few of the competitors along the way, but we want to really make sure that people understand that we are fresh and we're a little bit different," Penegor told Mad Money host Jim Cramer.
But the mixtape has been praised by critics, with Cincinnati.com suggesting it could be the hottest rap album of the year.
Others called it "pure fire".
Competition between fast food giants had appeared to reach a stalemate with the 'McWhopper' - a combination of the most popular burgers between McDonald's and Burger King.
But Wendy's appears to have lit a fire back under the compition with its rap beef album.
Meanwhile, we await McDonald's response - in rap form, please.
* Listen to We Beefin? here.