Marco Giuseppe Di Marco is a guitarist from Rome who has specialised in Brian May's sound and technique since the early 2000s. He was among the first in Italy to systematically document May's rig - Red Special replicas, Vox AC30 stacks and treble boosters - through his YouTube channel Brian May Italia. In collaboration with Australian luthier Greg Fryer he released a limited signature treble booster, and since 2024 he has been the guitarist of the Slovak Queen tribute band QUEENSHOW.
Marco G. Di Marco performs with the project The Brian May Tribute Band - an acoustic trio inspired by the Brian May & Kerry Ellis project - and the band released a promo video for the 2026 season.
Australian manufacturer Greg Fryer announced that only the last 2 units remain for sale from the limited series Fryer/Di Marco Treble Booster.
Marco Giuseppe Di Marco completed a major Slovak tour with the band QUEENSHOW across ten cities, which lasted from October 10 to December 12, 2024.
QUEENSHOW with Di Marco performed at the Freddie Celebration Days festival in Montreux, where their performance was praised by Peter Freestone, personal assistant to Freddie Mercury.
Marco Giuseppe Di Marco visited the laboratory of Italian manufacturer Colombo Audio Electronics and began an endorsement collaboration with them.
