R&B star R. Kelly has had to suddenly cut short a promo tour when he was rushed to hospital today for emergency medical treatment, reports music-news.com. A statement released from his publicist Sarah Rothman says, "While on his way to New York this morning to celebrate the publication of his long-awaited memoir 'SoulaCoaster,' multi-platinum R&B superstar R. Kelly was taken ill and had to return to Chicago for medical treatment. Initial indications are that he is suffering from complications from surgery he had last year to treat an abscess on his vocal cords. As a result, Kelly has had to cancel appearances on 'The Jimmy Fallon Show' and NBC's 'Today' as well as a book party that was being held in his honour. It is unclear how long Kelly may be sidelined". The statement is somewhat strange in that Kelly has surgery on his tonsils last year, not his vocal cords but this case is suspected of being related to vocal cords.