The Jayhawks' final record with singer/songwriter Mark Olson, Tomorrow the Green Grass is also the group's finest. While the band's earlier efforts perfected a more traditional brand of country-rock, their fourth record is marvelously eclectic, both musically and emotionally; never before had they rocked as hard as on "Real Light," dug as painfully deep as on "Two Hearts," or hit quite the same peaks of exuberance as on "Miss Williams' Guitar," a tribute to Olson's new wife, neo-folkie Victoria Williams. The addition of keyboardist Karen Grotberg brings rich new layers to the Jayhawks' sound, as does the inclusion of a string section on cuts like "Blue" and "I'd Run Away," a soaring pop song that's quite possibly the best thing the group ever recorded. A fitting legacy, indeed.