Biography
There are at least 5 bands with this name:
1. 2011- Sweden. https://www.youtube.com/user/PostcardTheBand/videos & http://apostcardblog.wordpress.com/
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2. 2014- ?. http://open.spotify.com/album/6K2RXmsWz8VXvuhW5FTpG2
3. 2014- Japan. http://open.spotify.com/album/40YAoPBrRONAlwrcYRuMRF
4. 2006 USA. http://www.myspace.com/postcardmusic
5. 2012 Germany. http://www.postcardmusic.de/
Biography text from Last.fm, available under CC BY-SA.