LOS ANGELES -- Boo, a Pomeranian once dubbed the "World's Cutest Dog," has died at age 12.
According to a Facebook post on Boo's official page, the viral sensation passed away in his sleep Friday morning, Jan. 18.
"Our family is heartbroken, but we find comfort knowing that he is no longer in any pain or discomfort," said the post.
The entire post reads:
Boo's Facebook page has over 16 million likes, and his Instagram has around 546,000 followers. The adorable internet icon will surely be missed.