Just a day after wowing — and in some cases annoying — St. Paul with a nightlong light test, Minnesota United released a video showing what those Allianz Field lights can do.

A light show synced with “Carol of the Bells” courses through the stadium, ending with a section of stands brightly lit in purple, spelling out MNUFC.

Minnesota United posted the video Friday without comment other than “DING DONG DING DONG DING DONG DING DONG,” but many viewers on social media speculated that’s what the team was up to when they were testing the lights the other night.

“Someone’s having fun with the new light system,” one Facebook commenter said.

RELATED: Intense light test at St. Paul’s Allianz Field draws oohs, aahs — and questions after 12 hours