Facts: - years active: 2010 -- present - birth name: oliver gammelgaard - label: cheff records - genre: rap , dancehall - birth date: 3 april 1991 - name: topgunn - background: solo_singer - image: topgunn.jpg - birth place: nrrebro , copenhagen , denmark - occupation: rapper Based on these bullet points, write a short biography describing the life of topgunn .
oliver gammelgaard better known by his stage name topgunn -lrb- born 3 april 1991 -rrb- is a danish rapper and music producer from nrrebro , copenhagen .he has also established his own label cheff records