Joss Stone, Kings Of Leon, Gym Class Heroes, Ted Leo and the Pharmacists, Rodrigo Y Gabriela, Andrew Bird and the Frames have joined the lineup for the 2007 Bumbershoot festival, to be held Sept. 1-3 throughout the Seattle Center. They join such previously announced acts as the Shins, the Wu-Tang Clan, Crowded House and Panic! At The Disco.

Also new to the bill are Gomez' Ian Ball, the Greyboy Allstars, Art Brut, the Damnwells, Barrington Levy, Anberlin, the Bouncing Souls, Mocean Worker, Seaweed, My Brightest Diamond, Stars Of Track And Field, the Watson Twins and Rose Hill Drive.

Among the comedians confirmed to appear at Bumbershoot's three comedy stages are Fred Armesin, Eugene Mirman, Janeane Garofalo, NPR commentator Andy Borowitz, Jonathan Coulton and Jeremiah Smallchild.

The event will also feature the Flatstock poster art fair, readings from writers Miranda July and "This American Life" contributor Davy Rothbart, visual arts exhibitions, dance and theatre performances and the 1 Reel Film Festival. For ticket information, visit Bumbershoot's Web site.