Tens of thousands of fans have scrambled for tickets to four now sold-out stadium shows in Melbourne and Sydney from Britpop legends Oasis, with some paying more than $800 to secure a seat. 

The band has announced a fifth and final show in Melbourne on November 4 next year due to the huge amount demand. 

Pre-sale tickets for the shows at Melbourne's Marvel Stadium on October 31 and November 1 sold out yesterday and tickets for general admission, released at 10am on Tuesday, were gone within the hour. 

The two Sydney shows at Accor Stadium on November 7 and 8 are also now sold out after thousands joined the online queue.

Prices started at $183.28, with the most expensive ticket advertised online for more than $800. 

Earlier today, the Victorian government declared the tour a major event, which means tickets will be protected under anti-scalping laws. 

Tickets cannot be resold for more than 10 per cent above their original value, and ticket package sellers are required to be authorised by the event organiser. 

Some fans priced out 

Sydney super fan Lesley Martin secured her spot in the pre-sale for $400. 

She was just 16 when she saw Oasis play at her first ever concert in her homeland, Scotland. 

"The price of my very first ticket was £17.50, so to pay $400 is a bit steep… I know a lot of people would find that really expensive," she said. 

Ms Martin, whose dedication to Oasis led her to host a podcast about Britpop, said it was "worth it" but "disappointing" for people who can't afford the high cost. 

"When you love a band and you love music, it's supposed to be about enjoying the music and that particular artist, to price people out of that isn't really what I think music is all about," she said. 

"I’m just such a huge fan, and I never thought they would get back together. They will just be phenomenal."

Sibling rivalry set aside for reunion tour

Liam and Noel Gallagher are getting the band back together after 16 years marred by a bitter sibling rivalry. 

In October, Australian tour dates were announced to follow a sold out tour of 28 shows through UK, Ireland, North America, Canada and Mexico through next year. 

It will be the first time the band will make their way Down Under since 2005. 

The reunion coincided with the 30th anniversary of the group's debut album, Definitely Maybe. A new anniversary reissue of the record earned Oasis their 8th UK number-one album and hit the Top 10 on the ARIA Charts in early September.

The shows are presented by the Australian and New Zealand arm of global touring titan Live Nation, which has been under scrutiny since Four Corners revealed the company was squeezing out local competition by acquiring smaller independent operators.

The investigation also found Live Nation, which earned $US23 billion last year, has been given millions in taxpayer funds to put on multiple events that never eventuated.