Simon & Marcy "everyone [working on the series] was pitching in to make this one special". The episode features the voice of Ava Acres, who portrays the young version of Marceline. Acres had previously appeared in the third season episode "Memory of a Memory". As mentioned above, the episode makes notable use of the 1982 song "Where Everybody Knows Your Name" by Gary Portnoy—better known as the theme to the sitcom "Cheers". According to Sugar's father, Rob, on his official YouTube channel, the use of the song started merely as a placeholder. However, as the episode developed, Sugar decided to keep it in
Mendy Portnoy Mendy Portnoy Mendy Portnoy (born 16 April 1992) is an English-born Israeli singer, pianist, and composer. He is best known as half of the folk rock duo the Portnoy Brothers with his older sibling Sruli. He has also released two albums as a solo artist. Portnoy was born on 16 April 1992 in Manchester, England, one of nine children. His father is a rabbi and former orchestra conductor. He and five other siblings made "aliyah" to Israel as adults. He and his brother Sruli studied music from a young age and began playing together around age 14. He originally took