Biography
Once refers to several different artists.
1) A major motion picture with music performed and written by Glen Hansard and Marketa Irglova.
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2) A hard rock band from Oskarshamn, Sweden.
3) Once Mekel, a male singer from Indonesia, Ex-Vocalist of Indonesian Band Dewa 19.
4) A symphonic metal band from Germany.
5) Yuji Sugimoto's (ex WEAVER) solo project
Biography text from Last.fm, available under CC BY-SA.