Boo died in his sleep, his owner announced Friday. He was 12.
Boo, world's cutest dog and internet sensation, dies of 'broken heart' – India TV
Boo The Pomeranian Dead: Fans Mourn The World's Cutest Dog – Hollywood Life
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Heartbroken Boo, 'world's cutest dog,' dies aged 12
abby on X: boo, the world's cutest dog has died. i just want to say thank you to him for this iconic picture. it wouldn't have happened without you. fly high, buddy!
Boo The Pomeranian Dead: Fans Mourn The World's Cutest Dog – Hollywood Life
Boo, The World's Cutest Dog, Has Died At Age 12 From Heartbreak
Boo, the World's Cutest Dog, Dies
Boo the Cutest Dog Dies of 'Broken Heart
Boo, the 'world's cutest dog,' dies aged 12
World's cutest dog dies of 'broken heart
Boo The Pomeranian Dead: Fans Mourn The World's Cutest Dog – Hollywood Life
World's cutest dog' Boo dies 'from broken heart', US News