Spandau Ballet's decision to launch tickets for its reunion tour in October with an online pre-sale via their official Web site has paid off.

The U.K. 80's pop act announced their return after 20 years during a press conference yesterday (March 25) on board HMS Belfast near London's Tower Bridge. It was the scene of one of their first concerts in 1980.

Tickets for the eight U.K. and Irish arena shows announced so far go on general sale on March 28, but a pre-sale allocation for the October dates was available at to coincide with the announcement yesterday.

In a statement, Digital Stores, the direct-to-consumer online retailer service provider, said there had been strong demand for Spandau Ballet tickets, with the pre-sale allocation for the London O2 arena show selling out "almost immediately." The London allocation was increased as a result.

Many thousands of pre-sale tickets were sold for other dates, the statement added.

"We sold out of our initial allocation for Spandau Ballet's O2 show almost straight away," said Simon Coates, product director at Digital Stores, in a statement. "The response has been phenomenal, although we knew the world would be blown away by the band getting back together. We've been secretly planning this comeback with the band for months behind closed doors, and all the good work is paying off."

Dates for a Spandau Ballet world tour will be announced in the coming weeks.

Meanwhile, Digital Stores reported that the pre-sale for U.K. dance act the Prodigy's April 18 Brixton concert sold out in five minutes. General sale tickets went on sale today.

The show is an addition to the U.K. tour for the band, which entered the U.K. album chart at No. 1 this month with its comeback "Invaders Must Die" (Takemetothehospital/Cooking Vinyl).