Six Nice Jewish Boys take the stage, each equipped with only a microphone, a black blazer and the resolve to entertain. Images of choral singing / barbershop / doo-wop enter your brain; this is going to be boring, you think. Then, six mouths open — and it’s anything but.

Suddenly, you’re hearing full-fledged contemporary pop and soulful rock anthems with hard-hitting “drums”, deep bass and powerful lead vocals. You’re fully engaged, and you begin to notice: so is the entire crowd. This isn’t at all what I thought a cappella music was. This group is unlike anything you’ve ever seen or heard — and you can’t quite figure out how that sound is being generated by nothing more than six guys and their voices.

But you, and the rest of the audience, remain riveted long after that novelty wears off. The Jewish favorites you grew up with intermingle with clever parodies of today’s hits and catchy Six13 originals you’ll be humming on the drive home. Along the way, there are laughs, sing-alongs (both planned and unplanned), demonstrations, words of Torah and more — and by the end of the night, you feel like you’ve made six new friends.