Those attending Seattle’s fifth Decibel Festival can add Kompakt Records’ stars Michael Mayer and Superpitcher to the already extensive lineup.

The two will DJ together under their Supermayer guise at the festival’s closing party, which takes place on September 28, starting at 8 p.m. They’ll be joined by The Bug and Warrior Queen, who will perform live, Flying Lotus, also doing a live set, and Static Discos’ Fax. Pick up presale tickets for $20, otherwise it’s $25 on the night of the event.

Meanwhile, the rest of the Decibel lineup continues to mushroom. Behold, the 2008 slew of artists scheduled to perform:

Carl Craig, Deadmau5, Jahcoozi, The Bug feat. Warrior Queen, Supermayer, Flying Lotus, Dixon, Glitch Mob, Audion, Tujiko Noriko, Tycho, Brian McBride of SOTL, Luca Bacchetti, Jeff Samuel, Helios, William Basinski, Deaf Center, LA Riots, Eluvium, Barbara Morgenstern, Santiago & Bushido, 33Hz, Jeremy Ellis, Mike Monday, Akira Rabelais, Library Tapes, KiloWatts, [a]pendics.shuffle, Jeff Greinke, Stewart Walker, Fax, Noah Pred, Deru, Eskmo, Lusine, Balún, Cubenx, Alland Byallo, Welder, Derek Plaslaiko, Nalepa, Truckasauras, Jacob London, Careen Ajar, Dave Pezzner, Let’s Go Outside, Jerry Abstract, Attentat, Bryan Zentz, Caro, Scott Pagano, Kid Hops, Mister Leisure, Craig Kuna, Shen, ndCV, novaTRON, Carole Kim, Taimur Agha, Sammy D, The Sight Below, offthesky, Kadeejah Streets, Phidelity, Nikola Baytala, Michael Manahan, Nordic Soul aka INCITE!, Chuck Flask, J-Sun, Kamran Sadeghi, Crazy Larry, Eddie, Ctrl_Alt_Dlt, Les Freres Courvoisier, Lucy Bland, Rob Noble, Kris Moon, Scott Sunn, SunTzu Sound, m.0, Alala.One, Noisemaker, Leo Mayberry, Dr. Mr. M, Panty Control, 31 avas, Struggle, Vance Galloway, Camino Acid, m. quiet, Skoi Sirius, Aron Schoppert, sarah h.dot, Sean Majors, Travis Baron, Swank, Levi Clark, Jeronimo, Shane Silkey, Limefeather, Blondzie, Punch Drunk Productions, Skyler, Epiphanous