“Not many people know this, but ‘West Side Story’ is actually based on another classic tale of star-crossed lovers — ‘90 Day Fiancé,’” DeBose quipped.
McKinnon popped up to do a medley of songs from the musical with DeBose — but mostly contributed lots of body English.
“That was pretty good, Kate,” DeBose said.
“Yeah, I know. I’ve been on Broadway ... like, the sidewalk,” she deadpanned.
She came through in the end, though.
Check it out in the video clip above.
This article originally appeared on HuffPost and has been updated.