『空洞です』（くうどうです）は日本のサイケデリック・ロックバンド、ゆらゆら帝国による11作目のオリジナルアルバム。 2007年10月10日にソニー・ミュージックアソシエイテッドレコーズより発表。 規格品番はAICL-1877。

Salad Days is the second full-length studio album by Canadian musician Mac DeMarco released on April 1, 2014 through Captured Tracks. Following the debut releases of Rock and Roll Night Club and 2 in 2012 and the extensive touring for both releases in 2013, DeMarco worked on material for his next album at his Bedford-Stuyvesant apartment in Brooklyn. Salad Days garnered acclaim from critics, and debuted at number 30 on the Billboard 200. The album spawned two singles: "Passing Out Pieces" and "Brother". To promote the album, DeMarco went on a tour that spanned across North America, South America and Europe.