SIR Mick Jagger's former wife Jerry Hall has spoken of her shock on hearing ROLLING STONES star Keith Richards underwent emergency brain surgery. The Texan supermodel has been in constant contact with the Brown Sugar guitarist's family after he reportedly fell from a Fijian coconut tree and hit his head last month (27APR06). She says, "I heard that he is doing very well. We are very upset about it. "Mick is on holiday at the moment so he is hearing the same news as we are." The 62-year-old rocker had the operation at The Ascot Hospital in Auckland, New Zealand, on Monday (08MAY06).