Joseph Saddler, known better by his stage name Grandmaster Flash, is a hip hop pioneer and DJ. In 2007, Grandmaster Flash at the Furious Five were the first hip hop artists to be inducted into the Rock and Roll Hall of Fame.

He also has a lot of love for all the grandchildren out there.

It's moments like these when that you wonder whether Facebook's engineers just have a great sense of humor. As the story goes, Facebook's auto-tagging feature has caused more than a few grandmothers to tag Grandmaster Flash in their posts to family members. And thus, as these things go, we have a Tumblr dedicated to tracking the beautiful mistake.

And just when we were doubting the authenticity, Grandmaster Flash himself confirms it:

It's true I get a lot of posts from Grandmas. Hilarious now I know why --- Respect Grandma and Grandpa. P.S. This is Hip Hop!

Yes, it is.