**ALL ROUND EXCLUSIVE PICTURES FROM SOLARPIX.COM**.**WORLDWIDE SYNDICATION RIGHTS**.Celebrity guests, friends and family celebrate George Michael's Birthday at the Berkeley Hotel, London, 25th June 2007..This pic: Martin Kemp..JOB REF: 4133 GMT DATE: 26.06.2007.**MUST CREDIT SOLARPIX.COM OR DOUBLE FEE WILL BE CHARGED* *UNDER NO CIRCUMSTANCES IS THIS IMAGE TO BE REPRODUCED FOR ANY ONLINE EDITION WITHOUT PRIOR PERMISSION*