Big Mouth Theme Song Lyrics
Behind the Music: Meaning & Story
The Big Mouth theme song, titled “Changes,” is a soulful powerhouse that perfectly captures the internal chaos of adolescence. While the show is an unapologetic and hilarious look at puberty, the choice of music adds a layer of genuine emotional depth. The version used for the series is a cover by soul singer Charles Bradley, whose gravelly, passionate delivery gives the lyrics a raw sense of urgency.
Interestingly, “Changes” was originally a heavy metal ballad by Black Sabbath, written by Ozzy Osbourne and Tony Iommi. By repurposing this song for a show about “going through changes,” creators Nick Kroll and Andrew Goldberg created a brilliant juxtaposition. The “best friend” lost in the lyrics can be interpreted as the loss of childhood innocence as the characters navigate the confusing world of Hormone Monsters and social anxiety.
Premiering on Netflix on September 29, 2017, Big Mouth ran for 51 episodes across six seasons, becoming a cornerstone of adult animation. The theme song remains an anthem of self-discovery, acknowledging that growth is often painful, messy, and “uncomfortable,” yet universal. Charles Bradley’s performance, featured on the album Netkids Family, Vol. 2 and his own records, ensures that every episode starts with a reminder of the transformative power of time.