R. Kelly is sick and has missed appearances on Today and Jimmy Fallon, according to AceShowBiz. The R & B singer is suffering from complications from a throat surgery last year. He was supposed to be on the Today Show on June 28 and Late Night With Jimmy Fallon today, but will not be appearing on either. He will also be missing his launch party for his new book, SoulaCoaster.

R Kelly will be in Chicago for the next few days for medical treatment to what is likely complications from surgery to an abscess on his vocal chords. According to his publicist, it is unclear how long the singer will be out of the game.

The singer underwent surgery last summer at the Northwestern Memorial Hospital in Chicago. This led to the cancellation of his appearance at Reggae Sumfest in Jamaica. In December, he would return to the stage to perform on The X Factor.

The recent publicity appearances are due to the release of his new album “Write Me Back” on June 26. Today, June 28, “SoulaCoaster: The Diary of Me” is available for purchase. In the book, he discusses meeting Tupac Shakur & Notorious B.I.G. and how they influenced him to combine rap and R&B.