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Kenny Chesney is among the many stars sending birthday wishes to Willie Nelson. A host of stars have taken part in the special video campaign honoring the country legend, who is officially celebrating his 80th birthday today. 

Country singers including Vince Gill, Carrie Underwood, and Brad Paisley have submitted videos, along with a wide variety of celebrities ranging from Sharon Osbourne to Barbra Streisand to even SpongeBob SquarePants!  The videos are posted at

Happy Birthday Willie!

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