John Mayer mourns heartbreaking loss of longtime companion

John Mayer's pet dog of 14 years passed away.

The 48-year-old singer took to his Instagram account on Saturday to share an emotional post for his beloved dog, Moose, to say him the final "goodbye."

Mayer revealed in the touching tribute that Moose, who also made an appearance in his 2013 album cover Paradise Valley, came into Mayer's life when he "needed pure love."

'We said goodbye to Moose yesterday. He came into my life when I needed pure love, and that’s what he gave me for 14 years. We traded on that love, as well as something else I now realize was important: routine," Mayer wrote for his late fury friend.

He went on to say, "For a guy like me who left home at 19 and had never lived the same day twice, our routine brought real comfort and stability. When dinner is always at 8, and the afternoon walks are at 4:30, those kinds of things can heal your heart. And they did, time and time again."

"Today my heart is so heavy and sore, but there’s more love in my life than there has ever been, and that’s because Moose helped lead me to it," he poured his heart out.

"It can’t be long before I unearth an old tennis ball - there must be a hundred out there under sticks and brush that were too hard to fish out - and when I do, I’ll give it a toss, and think about the dog I had when I was becoming a man, and how he was such a good dog, and that there isn’t ever enough time. But there’s enough love. There’s more than enough," Mayer added.