Kylie Minogue's British comeback concerts sold out within an hour on Friday, forcing organisers to lay on four extra gigs to satisfy the Australian pop singer's fans.
The January 2 and 3 gigs at the 11,000-capacity Wembley Arena in London are Minogue's first in Britain since she was diagnosed with breast cancer.
Phone lines jammed when tickets went on sale at 9am, local time.
The shows proved so popular the promoters added extra dates on January 5 and 6 and Wembley's computer system crashed under the strain of fans ordering tickets.
Two further shows were then added on January 8 and 9 and tickets were soon snapped up.
"The demand for Kylie is absolutely phenomenal and these are the fastest selling shows I have ever experienced," said her agent Dave Chumbley.
Minogue, 38, was diagnosed with early stage breast cancer while preparing for the Australian leg of her Showgirl tour in May last year.
Following the diagnosis she underwent surgery in Melbourne and chemotherapy treatment in Paris.
She is going back on the road with her Showgirl Homecoming Tour, which kicks off in Sydney on November 11.
Minogue, who was based in London for many years, is Australia's biggest pop star, selling an estimated 40 million records worldwide. Her hits include I Should Be So Lucky (1988), Can't Get You Out of My Head (2001), Slow (2003) and I Believe in You (2004).
