Can you still remember those early school performances? After countless rehearsals, the big day arrived—you took the stage in front of your parents, teachers, and a sea of other kids’ families. The real pressure, though? Not from the adults, but from your classmates. You had to see them every single day on the playground, and if you messed up, you’d never live it down. And if your sibling was in the audience? Even worse. But if your sibling was on stage with you? That was next-level disaster territory.

For brother and sister duo Jadon Cole and Dylan Kate Muller, that’s exactly what happened. As little kids, they dared to take on “Hallelujah”—together. In matching outfits, no less! But sibling harmony? Not quite. Jadon couldn’t resist playing the know-it-all, constantly correcting Dylan mid-song. Dylan barely made it through a chorus without an interruption. Because let’s be real—there’s no rivalry like sibling rivalry!

And the result? Pure comedy gold. Jadon and Dylan took the classic sibling squabble and turned it into a full-blown act. Who wouldn’t have wanted to pull off a stunt like this at their school talent show? What made it work wasn’t just the playful bickering, but the clever lyrical twists. Dylan’s perfectly timed “Hello Julia” to a friend in the audience? Comedy perfection. Jadon’s deadpan reactions? Impeccable. And without their genuinely good voices, the whole thing could have flopped.

That viral moment happened five years ago. Since then, Jadon and Dylan have kept posting videos, but nothing has topped their “Hallelujah” showdown—which has now racked up an incredible 22 million views on YouTube!