Summer Rock Festival in Japan

Summer Sonic 2010 and Fuji Rock Festival  are 2 major summer rock festival in Japan.
Summer Sonic 2010(7th Aug to 8th Aug, 2days in Makuhari,Chiba and Osaka)
Fuji Rock Festival 2010(30th July to 1st Aug, 3days in Naeba Niigata Prefecture)
Artist Line up and Ticket information can be seen from the link in English.
Other music festival in Tokyo.
BIG BEACH FESTIVAL  BIG BEACH FESTIVAL is official beach party of worldwide dance music DJ Fat boy slim who organizes the Big Beach Boutique in UK. This festival starts from last year.

• Makuhari, Chiba on 5th June(sat) 
• gate open 10am, festival starts from 11am to 8:30pm
• Venue is Makuhari Messe in Chiba prefecture.Makuhari Messe access map.
• Ticket:10500yen (about $110) buy at Ticket info 

This year the line up of DJ are; 

• The Chemical Brothers(UK)
• Sasha(UK)
• Groove Armada(UK)
• Thomas Gandey(UK)
• The 2 Bears(UK)
• Shinichi Osawa(Japan)
• Jaymo&Andy George(UK)
• Dimitri Nakov(UK)
• Tania Vulcano(Spain)
• David Squillace(Italy)
• Zombie Disco Squad(UK)
• Dancing Pigeons(Germany)
• Dexpistols(Japan)
• 80Kidz(Japan)
• Jommy(Japan)

Time Table http://bigbeach-fes.com/time_table.html
See all in Blog: Japan Loves U