Enigmatic masked DJ/producer Marshmello makes groove-oriented, synth- and bass-heavy electronic dance music that found mainstream crossover success in the late 2010s. In the spirit of similarly cloaked dance figures like and , Marshmello performs wearing a full-head-covering, in his case a marshmallow mask. Despite his early anonymity, Marshmello's career blew up in 2015 when he began releasing tracks online. From there came shows at New York's Pier 94, Pomona, California's HARD Day of the Dead festival, and Miami Music Week. He also scored a number five Billboard electronic/dance album with his full-length debut, Joytime. Collaborative hits followed, with artists including ("Wolves"), ("Silence"), and (the platinum hit "Happier"). He hit a personal chart peak in 2019 with his revolutionary in-game concert Fortnite Extended Set.