Fanboy & Chum Chum originates from a Random! Cartoons called "Fanboy". The series was created by Eric Robles, and was directed by Brian Sheesley, Jim Schumann, and Russell Calabrese in its first season, and Eddie Trigueros, Brandon Kruse, Tom King, and Ken Mitchroney in its second season. The show revolves around the titular young comic book fanatics as they go around causing mayhem in the town of Galaxy Hills, often annoying their wizard friend Kyle and drinking "Frosty Freezy Freeze" slushies. It premiered on November 6, 2009 on Nickelodeon. The show had mixed-to-negative reception in its time.
In 2019, the YouTuber NICKTendo uploaded a video titled "Why Fanboy & Chum Chum is an Underrated Classic", expressing a more positive opinion of the show (while acknowledging its shortcomings). Around March 2020, the show started gaining more attention (partially, but not fully, ironic, and seemingly influenced by NICKTendo's video) with memes about the show appearing around the internet.
The Fanboy & Chum Chum theme song, performed by the band The Mae Shi, started appearing on the channel after the show's composer, Brad Breeck, released studio-quality stems of it, enabling remixes suitable for the SiIvaGunner channel's high quality rips. It first appeared on the channel during the April Fools' Day 2020 event, and since then has appeared in more rips.