Back to School Tour 2: The Sequel... TreeUnion is hitting the road from September to November for their second Back to School Tour. Check the Gigs Page for info. TreeUnion Shirts & Buttons! You can pick up a copy of the soon to be extinct Extra Life EP at any live show along with a groovy TreeUnion button! The band has also made a limited number of homemade shirts that you can only get at the shows. Check it out: Live Show Review: Village Underground 2007 Check out this review of TreeUnion's gig at The Village Underground in NYC on Nov. 9th, 2007: Guilt Free Pleasure Music Blog.