A countdown has been launched on MEGADETH's official web site to a mystery announcement that will be made on Wednesday, September 7 at 9:00 a.m. EST / 6:00 a.m. PST.MEGADETH's new album, "TH1RT3EN", is scheduled for release on November 1 via Roadrunner Records. The CD was recorded at MEGADETH mainman Dave Mustaine's Vic's Garage studio in San Marcos, California with producer Johnny K (full name: John Karkazis), who has previously worked with DISTURBED, SEVENDUST, MACHINE HEAD and STAIND, among others. The artwork will once again be created by artist John Lorenzi, who was responsible for the artwork on the last two MEGADETH studio albums, 2007's "United Abominations" and 2009's "Endgame", as well as the band's 2007 box set, "Warchest". "TH1RT3EN" marks the recorded return of bassist David Ellefson who was part of the band's classic lineup from 1983 to 2002. In a move that delighted the band's legion of diehards, Ellefson returned to performing live with MEGADETH in early 2010 and has remained a fixture on the stage ever since. This is the first time Ellefson has played on a MEGADETH record since 2002's "Rude Awakening". The title has several levels of meaning, which leader and guitar deity Dave Mustaine, who first picked up an axe at the age of 13, revealed in a recent chat with RollingStone.com, saying, "I was born on September 13th; this is my thirteenth record. It just seemed like it was the right thing to do to call it 'TH1RT3EN'." The band also recorded an original track, "Never Dead", specifically for the "NeverDead" action-adventure video game franchise. "Never Dead" will appear on "TH1RT3EN". Additionally, "Sudden Death" was recorded for "Guitar Hero: Warriors Of Rock" and will appear on the album.