The Samuel Jackson Five or Sj5 for short is by no means a joke band (although I thought they were at first) so don't brush them off as one.
First off, no. No one in the band is names Samuel or Jackson for that matter but, they are a 5 piece band. They are from Norway and as their myspace says, they are an Experimental / Alternative / Indie band. They've released quite a number of songs and are working on a new CD that I'm looking forward to.
bands website
http://www.sj5.no/
Their Myspace
http://www.myspace.com/thesamueljacksonfive
I enjoy experimental music/progressive music, and these guys are a good listen.
EDIT: silly gramar