Boo was loved around the world, but it wasn’t enough to mend a broken heart.
Boo, a 12-year-old Pomeranian, didn’t wake up Friday morning joining his best friend, Buddy, who died in 2017.
Boo became part of his human family in 2006. Exactly how or when he became the “world’s cutest dog” doesn’t really matter.
He quickly became an internet sensation, the subject of books and stuffies, met celebrities ranging from Seth Rogen to Anderson Cooper and Martha Stewart to Martin Sheen.
But he also launched “the greatest, most heartwarming friendship of all time,” according to Boo’s owners, who wrote to the dog’s more than 16 million followers on Facebook.
Mostly, Boo loved Buddy.

They loved each other right until the end.
“Shortly after Buddy died, Boo showed signs of heart issues,” the family added. “We think his heart literally broke when Buddy left us. He hung on and gave us over a year. But it looks like it was his time, and I’m sure it was a most joyous moment for them when they saw each other in heaven.”

Boo’s human family is “heartbroken,” but have found some comfort amid loss.
“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,” they wrote.
Condolences quickly poured in from around the globe.
Will never forget the time I found a cut-out picture of Boo the dog in my grandma’s purse. Guys, she SNIPPED IT OUT OF A MAGAZINE. Rip Boo 😭 https://t.co/TbFCVTCUMq
— Renee Klahr (@reneeklahr) January 19, 2019
Years ago my mom bought me this stuffed animal version of Boo the Dog to cheer me up. Thanks for making this world a little brighter ✨ pic.twitter.com/iOTuqnGlLr
— Raquel Villanueva (@Raq_Villanueva) January 19, 2019
Boo the Pomeranian passed away and I think this is the saddest I’ve ever been over a dog I didn’t even know. I’m gonna be a MESS when Maru passes. pic.twitter.com/hzQKG1mB4x
— Dianna E. Anderson 🏳️🌈 (@diannaeanderson) January 19, 2019
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cuddle session with @sethrogen and lauren miller yesterday! seth and i cuddled. like men.
Boo was so squee.

But now, Boo and Buddy are together forever.

They are most definitely missed.
Photos Boo/Facebook