Pop rockers No Doubt revealed on Sunday that their sixth album will arrive in stores on September 25th.  The album will be the first from No Doubt since they released "Rock Steady" in 2001.  No Doubt has been mostly inactive over the last decade as frontwoman Gwen Stefani has tackled a couple of solo albums.  The group did return to touring in 2009, albeit somewhat sparingly, but the new album, for which a title was not announced, will be the band's first release of new material in eleven years.  No other details about the album were issued.  Check out a YouTube-hosted video clip announcing the release date below.