Top Definition
a youtube sensation with his band TheBlaqkYear (
he has many friends on myspace ( which have supported him all the way.
and he also has a bebo that is growing with new fans and friends
he started the band when he was only at a minor age at 12 years old.
since then him and his band has been posting accoustic covers on youtube.
they have had over 5000+ subscribers and over 10000+ views per video.
sam koster has done a cover of panic at the disco- nine in the afternoon in april 2008 boosting his popularity.
by shannon ansell January 01, 2010
7 Words related to sam koster

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