If you’ve ever wanted to learn geometry while grooving to a slick Nick Jonas jam, you’re in luck.

The pop star appeared on Sesame Street to sing the praises of both pentagons and octagons, backed up by Bert, Cookie Monster, and The Count (all wearing fedoras). Counting sides just got a whole lot more fun.

Next month, Jonas will release his new album Last Year Was Complicated. “Check That Shape” probably won’t make the tracklist, but there’s always hope for the deluxe edition.

Listen to Jonas’s Sesame Street groove (and watch him dance with muppets) below.