Christopher Comstock, known professionally as Marshmello, was born on May 19, 1992, in Philadelphia, Pennsylvania. He emerged in 2015 on SoundCloud with remixes of tracks by Jack Ü and Zedd, gaining support from DJs like Skrillex. His identity remained anonymous until confirmed by Forbes in 2017; he performs wearing a custom marshmallow-shaped helmet. Marshmello produces groove-oriented electronic dance music incorporating future bass, trap, and pop elements. His debut album Joytime (2016) featured the single 'Keep It Mello,' followed by Joytime II (2018) and Joytime III (2019). Key singles include 'Alone' (2016), which charted on the Billboard Hot 100 and earned platinum certification, 'Silence' (feat. Khalid, 2017), 'Friends' (with Anne-Marie, 2018), and 'Happier' (with Bastille, 2018), which peaked at number two on the Hot 100. Marshmello is recognized for high-energy live performances at festivals such as Electric Daisy Carnival. In 2019, he ranked second on Forbes' list of highest-paid DJs with $40 million in earnings, and his 2021 album Shockwave received a Grammy nomination.