I'll bet if Seth booked a two day festival with this type of artists, it would make some people giddy about it...
Morrissey, PJ Harvey, Sonic Youth, The Killers, Wilco, The Flaming Lips, The Von Bondies, Modest Mouse, Le Tigre, Gomez, Black Rebel Motorcycle Club, Danger Mouse, The Polyphonic Spree, Broken Social Scene, Bumblebeez 81, The Secret Machines, Elbow, Wheat, The Coup, Wolf Eyes, The Dresden Dolls
This is most of the lineup scheduled for the 2004 Lollapalooza tour, with a stop at Merriweather, that eventually got canceled due to poor ticket sales
Or how about this festival lineup
The Cure, Interpol, The Rapture, Mogwai, Muse, Melissa Auf der Maur, and Head Automatica.
Which was Curiosa also at Merriweather