Who is Marshmello? Christopher Comstock (born May 19, 1992), known professionally as Marshmello and formerly as Dotcom, is an American DJ and record producer.Where is Marshmello playing next? Marshmello's next show is on NOV 10 at The 02 London in London. They have 14 upcoming shows scheduled. Check The DJ Calendar for full tour dates and tickets.What genre is Marshmello? Marshmello is known for big-room music, specifically Electronic. They are an electronic music artist and DJ with upcoming shows listed on The DJ Calendar.When does Marshmello perform next? Marshmello's next scheduled performance is NOV 10 at The 02 London in London. See all 14 upcoming shows on The DJ Calendar.What record label is Marshmello signed to? Marshmello is signed to Monstercat. They are a big-room artist and DJ with shows tracked on The DJ Calendar.