Jessica Simpson and John Mayer have sparked rumours they are dating again after being spotted together in Los Angeles on Saturday night (18NOV06). Simpson famously fired her publicist earlier this year (06) over reports she was dating the singer, but the celebrity couple may indeed be together again after allegedly getting cosy at top nightspots. According to E! News, the pair were spotted in Beverly Hills enjoying a night out on the town together. They were seen at both the Sunset Marquis hotel and the Four Seasons where Simpson was seen resting her head on Mayer's chest. The couple then left the hotel with a large group of friends. Simpson and Mayer may have rekindled their romance, but they aren't going public with their feelings. Simpson's representative refused to confirm the new relationship insisting she is "not commenting on (Jessica's) personal life".