Mariana BO is one of the less expected fits for the house-and-techno half of Ubbi Dubbi's premise: a classically trained violinist from Culiacán, Sinaloa, who plays live violin over hard techno, neo-rave and trance. "Vivaldi," her collaboration with Timmy Trumpet, has more than 24 million Spotify plays, and she's also released "Kolkata" with KSHMR. She's held a place in DJ Mag's Top 100 DJs, landing at No. 91 in the 2025 poll, a year in which she played Tomorrowland and EDC Mexico while rehearsing a sold-out show with Mexico's Filarmónica de Querétaro, a project she told DJ Mag bridges her classical training and her DJ career.