Australian Record Industry Association (ARIA) Awards winners Sia and Washington will join the 2011 Big Day Out. Sia and Washington are also accompanied by fellow Australian, The Vines.

Organizers of the Big Day Out 2011 concert series have unveiled the second and final list of line-up, featuring Australian musicians, and local acts from cities where festivals will be held. Australian pop rock band Amy Meredith will join Big Day Out in Sydney concert on January 27 next year, as one of the local acts to be featured in the concert.

"With over 40 amazing acts from home and around the world already on board its time to complete the picture of what's in store for the 2011 series of Big Day Out festivals," says the Big Day Out organizers.

"Big Day Out is not just about international acts. We truly believe in supporting local musicians, DJs and artists."

Here's the national musical additions to Big Day Out 2011 concert series:

  • SIA (All shows)
  • THE VINES (All Australian Shows)
  • THE GREENHORNES (All shows)
  • WASHINGTON (All Australian Shows)
  • MATT & KIM (All Australian Shows)
  • BLACK MILK (All Shows)
  • ANNA LUNOE (All Australian Shows)

For details on concert tickets for Big Day Out 2011 and local acts for each leg of the concert series, visit Big Day Out 2011 Web site here.