Boo the Pomeranian, who spent much of his life bringing joy to millions around the world, has died. His family announced the news on social media on Saturday.

Over ten years, Boo and his late brother Buddy amassed a following of over 16 million fans on Facebook and another half a million on Instagram. In 2011, Boo even scored his own book titled Boo: The Life of the World’s Cutest Dog.

Unfortunately, as Boo’s family revealed in their statement, he started to suffer from heart issues shortly after Buddy died a year ago.

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On social media, Boo’s family shared the sweet Pomeranian died in his sleep.

“Our family is heartbroken, but we find comfort knowing that he is no longer in any pain or discomfort. We know that Buddy was the first to greet him on the other side of that rainbow bridge, and this is likely the most excited either of them have been in a long time.”

“Since starting Boo’s FB page, I’ve received so many notes over the years from people sharing stories of how Boo brightened their days and helped bring a little light to their lives during difficult times. And that was really the purpose of all this…Boo brought joy to people all over the world. Boo is the happiest dog I’ve ever met. He was so easy going that we never had to bother with training. He made the manliest of men squeal with delight over his cuteness and made everyone laugh with his quirky, tail wagging personality.”

“Boo, we love you with all our hearts and will miss you until the day we meet again. Have fun running around with Buddy and creating adorable mischief wherever you guys go.”

You can read Boo’s full tribute below.

Dearest friends of Boo,With deepest sadness I wanted to share that Boo passed away in his sleep early this morning and… Posted by Boo on Friday, 18 January 2019