Tart

I have this tree in my yard that bears fruit similar to a raspeberry. I was confused about it for the longest time because it's a tree. I went to google and asked around for a berry looking tree. I found an answer as usual. It's a Mulberry tree. I was confused because the famous children song goes like these:

All around the mulberry bush
the monkey chase the weasel...

It didn't say tree! Anyway, I have a mulberry tree in my yard.