If there were any justice, Guster's underappreciated masterpiece, Lost and Gone Forever, would have elevated the band to superstar status, and the follow-up, Keep It Together, would have been one of the most hyped releases of 2003. But while the Boston trio has built up one of the most formidable grassroots followings in music through constant touring, powerful live performances, and a level of interaction with its fans that rivals any band in the biz, Keep It Together has the goods to finally make Guster a household name.