Matt Damon Channels Santa Claus for New PSA (Video)

Santa is going by a new name this holiday season: Damon Claus. 

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In a new campaign for his Water.org charity, Matt Damon dresses up as Mr. Kringle, to ask kids what they'd like for Christmas. 

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But, instead of zombie dolls, a Darth Vader mask, airplanes and Justin Bieber, Damon tries to convince kids to ask for a water bottle. 

"If you were stranded in the desert, what would you rather have? This water bottle or Justin Bieber," the We Bought a Zoo actor asks one young girl. 

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Her answer? "Justin Bieber."

But, after getting shot down by a few kids, and peed on, Damon did manage to convince one child that a water bottle is what she wants for Christmas. 

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But only after having a lesson in humility. The actor asked a few of his tiny friends knew who Matt Damon was and was met with many "no's". Though one child did know of his pal Ben Affleck. 

Watch the PSA below.