The spoof song 'Yum Yum' has become a surprise Passover hit in US Orthodox communities, offering a window into the communities' online culture. The song is a collaboration between Rabbi Greenspan and TYH Nation, a group that produces music and merchandise with uplifting Jewish themes. The song features surrealistic AI-generated images and combines upbeat messaging, wordplay, and gibberish in English, Hebrew, and Yiddish. The goal of the track is to uplift listeners during the holiday and bring joy during a dark time for Jews.