He had a type of brain tumor in the 90s. He removed succesfully, but the rehabilitation was hard and slow. So he took medicine which eventually made him gain weight and caused some trouble in his singing. How ever I think he had the best performance ever in 2002 in the night of the proms. He left Foreigner in 2002 in bad terms with Mick Jones. However they are reuniting in a few months for the Songwriting Hall.
