LONDON: Rumours are rife that all is not well between engaged couple Katy Perry and Russell Brand. Sources say their three-month engagement has hit the skids amid reports that comedian Brand is tired of commitment. The rumours even extend to them postponing their wedding, reported mirror.co.uk. Perry and her fiance were seen arriving at Los Angeles’ W hotel separately. Later, a glum-looking Perry was spotted pouring her heart out to a mystery man. Even last month, Brand was seen flirting with a girl at the pre-Oscar party.