Chicago singer R. Kelly suffered a health emergency that forced him to cancel an event in New York. TMZ caught up with Kel's spokesperson last night who told them that "initial indications are that he is suffering from complications from surgery he had last year to treat an abscess on his vocal cords." He's currently hitting the road in promotion of his latest album, "Write Me Back," and the event he was scheduled for last night was for the launch of his new book, "Soulacoaster: The Diary of Me." In addition, he had to cancel appearances on "The Jimmy Fallon Show" and NBC's "Today" show.

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