Each year eager Splendour In The Grass devotees look to the line-ups of two leading Japanese festivals for clues on who’ll be making the Byron Bay pilgrimage. Those festivals are of course Fuji Rock and Summer Sonic – and both have now announced their first round of acts. It must be said that in 2008 there wasn’t as much crossover as other years – with only a handful of bands doing the Japan/Australia double. But what’s wrong with a little speculation, eh?

Summer Sonic has reeled in some big (if not entirely Splendour appropriate) headliners for its 10th anniversary bash on the weekend of 7-9 August. Some names that raise our pulse include The Flaming Lips, Sonic Youth, Klaxons, Placebo, Soulwax and Aphex Twin. A return journey from Mogwai (here earlier this month) and Future Music Festival drawcards CSS seems unlikely so soon – but stranger things have happened.

As for Fuji Rock, which happens on the other side of Splendour at the Naeba Ski Resort, it’s another dream-list. How would Animal Collective, Diplo, Patti Smith, Royksopp and Weezer suit you? Presumably Basement Jaxx won’t head back this soon after FMF, but the likes of Crookers, Gang Gang Dance, Simian Mobile Disco and many more are all on board. Check out the full line-ups for both below and begin your idle guesswork…

FUJI ROCK LINE-UP

The Aggrolites / Animal Collective / Bad Brains / Basement Jaxx / Ben Harper & Relentless 7 / The Bloody Beetroots / Comeback My Daughters / Crookers / Diplo / Easy Star All Stars / Fake Blood / Fall Out Boy / Franz Ferdinand / Funky Meters / Gang Gang Dance / The Gaslight Anthem / Gong / Hayley Sales / The Higher / The Japanese Popstars / Jeff Lang / Justin Nozuka / Longwave / M83 / Melvins / Patti Smith / Polysics / Rowland Howard / Royksopp / Simian Mobile Disco / System 7 / Twisted Wheel / The Virgins / Weezer

SUMMER SONIC LINE-UP

Linkin Park / My Chemical Romance / Nine Inch Nails / The Specials / The Flaming Lips / Aphex Twin / CSS / The Enemy / Klaxons / Mogwai / Paramore / Placebo / Sonic Youth / Soulwax / Teenage Fanclub / Boys Like Girls / Cancer Bats / Datarock / Enter Shikari / Ghostland Observatory / Girl Talk / Hollywood Undead / Kid Sister / Kyte / Lady Gaga / Lenka / Little Boots / Mando Diao / Matisyahu / Metronomy / Mew / Mercury Rev / Mutemath / N.A.S.A / Red Light Company / Saosin / The Vaselines / VV Brown / Yuksek