The stories of D&D are not character backgrounds or elaborate plots created by the DM. They're the memories we create when we play, whether meta-game or within the game, they're the "Remember the time Bob cast invisibility on himself, and tied the Giant's shoelaces together as the giant slept?" moments.
Last night I was privileged enough to create and be a part of one of the best of those.
Every year I run a "Christmas game" for the adventurers. Without delving too much into the specifics, the party was squared off against a herd of deadly Christmas Tree Monsters (shamelessly lifted from the Zork games). They had no idea how they'd overcome hundreds of 9' tall, angry intelligent Christmas trees. Charm Plant? Use a Potion of Plant Control? Fireball them?
Finally a couple of players suggested they try to sing Christmas carols at them (the Trees were singing off-color versions of old Christmas standards like "Plover the River and Frotz the Woods" and "I'm Dreaming of a Black Cavern" and so on).
Jeremy Rule, playing the party bard, picked up his guitar (note: Jeremy, not the bard) and started strumming "Oh Christmas Tree".
I told them that if they all had a sing-along, I would let them by the encounter, that they'd overcome the Christmas Tree Monster army.
So they did just that, on Discord (the lag made it a little jumbled but the spirit was with them) and after a few bars of the song, the deadly Yule Tide parted and they were able to pass unassailed.
I remember years ago when I got my Dungeon Masters Guide, the notes for Heward's Mystical Organ said that if you (the DM) had a piano handy, to either write your own sheet music or compel the players to play old standards to activate and successfully use it. When I was 13, I thought that was the most ridiculous thing I'd ever read. Neat, but impractical. And yet, here I was, 36 years later...
It's memories like that, which are the "story" of D&D games.