Hardstyle Mafia is a Dutch hardstyle duo consisting of Brennan Heart and Fabian Bohn. They are known for their energetic live performances and their signature sound, which combines hardstyle with elements of trance and techno. Hardstyle Mafia has released numerous hit tracks, including "Monarch," "FIREPOWER," and "Immortal." They have also collaborated with other renowned artists such as Headhunterz and Wildstylez.