His owners announced Boo the Pomeranian has died this weekend at the age of 12.
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Boo The Pomeranian, Known As 'The World's Cutest Dog', Passed Away Aged 12
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Boo, the 'world's cutest dog', has died aged 12
Boo: The Life of the World's Cutest Dog (Halloween Books for Kids, Halloween Books for Toddlers, Cute Halloween Stories): 9781452103068: Lee, J. H., LeMaistre, Gretchen: Books