LATEST: Rihanna and Chris Brown have further fuelled rumours they are dating - after they were photographed leaving a London hotel. Earlier this week (begs17Mar08), Brown dismissed reports he is dating the Umbrella hitmaker, insisting he is "definitely single". However, Brown, 18, and the 20-year-old Bajan beauty were spotted leaving a London hotel on Saturday (22Mar08) morning, before making their way to nightspot Maya. Onlookers say they left the club together at 3am (GMT). Last month (Feb08), the couple were snapped frolicking in a swimming pool while on vacation in Jamaica.