The video may remind you of your great-uncle at your bar mitzvah, but it proves Bernie Sanders can loosen up.

On Thursday, the Jewish senator from Vermont and Democratic presidential candidate appeared on the “Ellen Degeneres Show,” where dancing on camera is a rite of passage.

His best moves came backstage before the show.

Presidential candidate @BernieSanders is ready for his entrance onto my show. https://t.co/cxVVL68hzJ — Ellen DeGeneres (@TheEllenShow) October 15, 2015

When he danced stiffly into the spotlight, he turned as red as a tomato.

For an enhanced experience, try listening to “Hava Nagila” while watching the 74-year-old socialist get down.

https://www.youtube.com/watch?v=vHSNZK4Je-Y