One study found that at outdoor electronic dance music festival (EDMF) events, methylenedioxymethamphetamine (MDMA), also known as molly or ecstasy, is one of the most popular drugs used. A 2018 survey of music festival attendees found 73.4% of attendees had reported substance use in the past year. The most common drugs used were cannabis (with 63.9% of study participants reporting use in the past 12 months of festivals), ecstasy (with 59.8% of polled festivalgoers reporting use) and cocaine (34.1%).