We all know summer means music festivals. We also all hopefully know that Australia celebrates summer when we’re battling winter. So it makes senses that with Australia’s summer quickly approaching, many of the country’s major music events are starting to finalize their 2010 festivities, the first being Big Day Out.

For its 18th edition, Australia’s largest outdoor music event has tapped the likes of Muse, The Decemberists, The Mars Volta, the newly unretired Lily Allen, Peaches, Rise Against, Mastodon, Kasabian, Dizzee Rascal, Powderfinger, Ladyhawke, the Horrors, and Girl Talk.

However, as Undercover reports, David Bowie, who had been heavily rumored to be participating in this year’s event, is missing from the initial lineup. Good thing initial only means initial, eh?

Big Day Out kicks off on January 15th in Auckland, New Zealand, before hitting the Gold Coast, Sydney, Melbourne, Adelaide and concluding in Perth on January 31st. Tickets, ranging from $132 – $140, are available via bigdayout.com.