The "Purple Rain" singer died in April 2016.

MORE: Celebs Remember Prince on 1-Year Anniversary of His Death

"The word 'icon' only scratches the surface of what Prince was and what he remains to me," Entertainment Weekly reports. The book is set to be released on Oct. 17.

Meanwhile, Beyoncé recently stepped out with husband JAY Z.

Watch the video below for more on the couple's night out.