Not many bands can stay relevant after 30 years, and even fewer can do it after losing a founding member. But here we are, listening to Collapse Into Now by R.E.M. ($12). The group's fifteenth studio album, Collapse is the band's best work in some time, blending its signature sound with new compositions and a fervor that belies the members' middle age. Extra bonus points for a surprise appearance by Eddie Vedder on "It Happened Today."