Ad Infinitum is a Swiss symphonic metal band. Originally a solo project of Swiss singer-songwriter Melissa Bonny, it turned into a full band with arrival of drummer Niklas Müller, bassist Jonas Asplind and guitarist Adrian Theßenvitz. The band signed a deal with Napalm Records in July 2019 and released a debut album – Chapter I: Monarchy – in April 2020. In December 2020, Jonas announced he is leaving the band due to health issues, to be replaced by Korbinian Benedict as the new bassist.