The widespread denial of coverage under first-party property insurance policies for business interruption losses resulting from the COVID-19 pandemic has been extensively reported, but so far less attention has been paid to related third-party claims and attendant coverage issues arising under liability insurance policies. When ticketed attendees sued the organizer of the South by Southwest (SXSW) music and film festival, SXSW LLC, for refunds after the 2020 annual event was cancelled because of the COVID-19 pandemic, the company’s liability insurer, Federal Insurance Company, refused to make good its duty to defend. SXSW has now sued Federal in the U.S. District Court for the Western District of Texas seeking a declaration that Federal owes a duty to defend SXSW against the underlying putative class action, providing insight on COVID-19-related liability coverage issues.