There are at least two bands that go by the name Half-Life, a Japanese alternative rock band and an American garage rock band. If you scrobble the Half-Life's soundtrack, this is an incorrect tag for the composer Kelly Bailey. If this non-artist appears in your charts, do last.fm and yourself a favor. Fix your artist tags. the Japanese Half-Life: Half-Life is a 3-piece alternative rock band from Tokyo, Japan, they are active since 2000.