District Line is the seventh solo album from former Hüsker Dü and Sugar frontman Bob Mould. Returning from his previous solo album, Body of Song, are drummer Brendan Canty, of Fugazi fame, and cellist Amy Domingues. Mould handled all of the other instruments himself. The closer, "Walls in Time," is actually a track that failed to make his 1989 solo debut, Workbook.