Veteran acts seem to be the trend at this year's Bumbershoot music festival, as its announced that folk founder Bob Dylan, '90s alternative rockers Weezer and Hole and R&B mainstay Mary J. Blige will be headlining the Labor Day weekend, 40th anniversary event.

Neko Case, Rise Against, The Decemberists, J. Cole, Jamie Lidell, LMFAO, Billy Bragg and Edward Sharpe (who was revealed earlier today to be heading to Outside Lands, as well) are also among the bigger names to be performing at the 74-acre Seattle Center Sept. 4-6.

Organizers have also enthusiastically mentioned "one more very special guest to be announced soon!"

Tickets are on sale now; you can check out $22-$250 packages at the Bumbershoot website.

Here is the somewhat-complete lineup to 2010 Bumbershoot:

Bob Dylan / Mary J. Blige / Weezer / Hole / Rise Against / Neko Case /  The Decemberists / J. Cole/ LMFAO / Billy Bragg / Ozomatli / Angelique Kidjo / Solomon Burke / The Dandy Warhols / Edward Sharpe & The Magnetic Zeros / Jenny and Johnny (featuring Jenny Lewis and Johnathan Rice) / Jamie Lidell / The Raveonettes / Balkan Beat Box / Motion City Soundtrack / The Thermals / Ra Ra Riot / The English Beat / Justin Townes Earle / Booker T. / Surfer Blood / The Bouncing Souls / Japandroids / Bob Schneider / Anvil / Bomba Estereo / Jay Electronica / Aterciopelados / Baroness / James Cotton “Superharp” Blues Band / David Bazan / Meat Puppets / Crash Kings / This Providence / Brian Auger’s Oblivion Express / The Moondoggies / The Whigs / Greg Laswell / Civil Twilight / Trampled By Turtles / The Clientele / Atlas Sound / Laura Veirs & The Hall of Flames / The Budos Band / Bobby Bare Jr. / Horse Feathers / Vienna Teng Trio / HEALTH / Plants and Animals / Georgia Anne Muldrow & Declaime / Wheedle’s Groove / Hey Marseilles / Kings Go Forth / Sweet Water / Delorean / JEFF the Brotherhood / Chris Pureka / Shawn Lee’s Ping Pong Orchestra / Garotas Suecas / The Maldives / The Constellations / Coryell, Auger, Sample Trio / Grynch / Visqueen / Victor Shade / Star Anna & The Laughing Dogs / Fresh Espresso / Pete Molinari / Sista Monica’s “Singin in the Spirit” / Lay Low / Unnatural Helpers / Idiot Pilot / The Round / Wild Orchid Children / The Cute Lepers / Feral Children / Fences / Caspar Babypants / The Tripwires / Fatal Lucciauno / Loch Lomond / The Physics / THEESatisfaction / School of Rock All Stars / See Me River / Zoe Muth and The Lost High Rollers / People Eating People / Eldridge Gravy & The Court Supreme / Brent Amaker & The Rodeo / Born Anchors / Slender Means / BOAT / McTuff Trio / Parlour Steps / The Redwood Plan / Helladope / Lisa Dank / Greta Matassa Quartet / The Lonely H / Matt Jorgensen Quintet / Becki Sue & Her Big Rockin’ Daddies! / Great Waves / Brian Vogan / Johnny Bregar