(Video) Each year, the Simi Valley Town Center has a Tree Lighting festivity that includes live entertainment, laser show, snow, Santa Claus and much much more.  The Christmas tree is 55 feet tall and decorated with an estimated 20,000 lights & ornaments. 2010 will be the sixth year that the Simi Valley Town Center has run this event and it has become very popular drawing large crowds for the show. The video below is just a teaser of all the fun, the tree will be up till January 3rd, so there is still time to enjoy the holiday atmosphere at the Simi Valley Town Center.