Eminem surprised fans today by dropping a surprise 13-track album called Kamikaze.

As well as guests Royce da 5'9", Joyner Lucas, and Jessie Reyez, Bon Iver's Justin Vernon features on one of the tracks "Fall".

The Vernon feature has homophobic slurs directed at Tyler, The Creator, as Eminem raps, "Tyler create nothing, I see why you called yourself a faggot, bitch / it's not just 'cause you lack attention / it's 'cause you worship D12's balls, you're sacrilegious..."

The homophobic slur has been received coldly, as listeners on Twitter began to question why Eminem is still going after people's sexuality.

Despite the majority of the backlash being directed at Eminem, fans are disappointed that Justin Vernon was involved in a project with homophobic slurs.

Kamikaze is out now, and features Dr. Dre as the executive producer, and lists Kendrick Lamar as a contributor to "Greatest". Justin Vernon has also recently released his debut album with The National's Aaron Dessner as Big Red Machine.