Oasis DON'T BELIEVE TH(LP)Oasis's sixth studio album, DON'T BELIEVE THE TRUTH, finds the Gallagher brothers back on solid sonic ground. After 2002's HEATHEN CHEMISTRY, the quintessential Britpop band began working with electronica act Death in Vegas, but the pairing proved uneasy, and Oasis opted for a return to its signature sound. Here the group's '60s inspired sound is exemplified by the record's first single, "Lyla," which sets the tone, as both frontman Liam Gallagher and