What adult animated musical comedy series, created by Vivienne Medrano, follows Charlie Morningstar, the princess of Hell, as she attempts to rehabilitate demons to reduce overpopulation in her realm?

The animated series in question, known for its unique blend of dark humor and musical numbers, perfectly aligns with the description of a show centered around Charlie Morningstar, the princess of Hell, and her unconventional mission. This particular adult animated musical comedy, created by Vivienne Medrano, indeed follows Charlie's earnest attempts to establish a hotel in her infernal realm, aiming to rehabilitate demons and thereby mitigate the overpopulation crisis that leads to annual exterminations.

The series gained significant traction after its independently produced pilot episode debuted on YouTube in 2019, quickly amassing a dedicated fanbase due to its distinctive animation style, memorable songs, and mature themes. Vivienne Medrano, also known as Vivziepop, developed the show from her earlier webcomic projects and animations, cultivating a passionate community around her creative vision. The show's success on YouTube ultimately led to its pickup by A24 for a full series production, demonstrating the power of independent creators in the digital age.

What makes this series particularly engaging is its commitment to character development within its fantastical, hellish setting. While presenting a world filled with sin and debauchery, it explores themes of redemption, acceptance, and the challenges of enacting positive change in a seemingly hopeless environment. The catchy musical numbers are integral to the storytelling, often advancing the plot or revealing character motivations, making it a truly immersive and entertaining experience for its adult audience.