Aaron West and the Roaring Twenties is the solo project of The Wonder Years frontman Dan Campbell. According to the project's Facebook page, it is defined as "a character study conducted through music", with Campbell taking on the persona of Aaron West in each song's lyrics. The project's debut album, We Don't Have Each Other, was released in July 2014; a follow-up EP Bittersweet was released on May 20, 2016. Occasional singles were released by the group in-between albums. The project released its second album, entitled Routine Maintenance, on May 10, 2019. On January 10th 2024, a third album was announced named In Lieu of Flowers, set to be released on April 12th 2024.