British singer Amy Winehouse has infuriated her fans after cancelling a concert at the last minute. The Rehab star was set to play at the Aintree Pavillion in Liverpool on Wednesday (05Jul07), but pulled out of the gig five minutes before the doors opened, citing "exhaustion". Her spokesman says, "She's played non-stop for six months and is tired." The gig has now been rescheduled for later this month (18Jul07).