They are the ONE, the ONLY, and the ORIGINAL Tree-O and ALL others are either pathetic knockoffs or wannabes.
The Tree-O is comprised of Alicia, Jessica, and Stephanie, whose last names will not be used in accordance with urbandictionary.com's policies about naming non-celebrities, which sadly includes not-yet celebrities such as these three girls.
The Tree-O are dorks, which is distinctly different from nerd and geek (obviously) because dorks are able to identify with and be on friendly terms with members of each and every level of the social spectrum, making them immensely popular.
They use extremely fun and varied vocabulary in everyday conversation which makes them interesting to talk to for both adults, young children, and their peers alike.
In short, The Tree-O is nothing short of perfect.