Kate Hudson is promoting her King St. Vodka brand and Cann, a cannabis-infused drink in which the actress is an investor, with a video created with Side Street showing herself and Baron Davis mixing the two at a festive party, with Darren Criss as an elf on the shelf. The video is set to Criss’ “Christmas Dance” and is running across Cann’s social channels, as well as those of Hudson and her party guests.