Rapper Nicki Minaj surprised her fans with a photograph of a chocolate cake inspired by her ample derrière.

Minaj shared with her 45.1 million followers on Instagram on Thursday, a photograph of the cake, reports aceshowbiz.com.

"How did the cake taste," Minaj wrote alongside the image.  Minaj's CDs appeared around the birthday cake that looked like her ample derriere. It also featured pink icing which looked like underwear.

The words written on the back part read: "Happy Birthday Rafael!" Minaj's followers had mixed feelings after they saw the image.

One user commented: "thts inapropriat. (sic)" Another user wrote: "Like yo fake implant a** booty."