The "Vampire Diaries" stars took fans behind-the-scenes of the hit series -- all for the sake of planet Earth.
Sara Canning, Nina Dobrev and Zach Roerig joined forces with DoSomething.org and HP's "Increase Your Green" campaign to create this video of tips on how to be more "green" -- in honor of today, Earth Day.
Go ahead, sink your teeth in!
