Started dj-ing in 1993 in the local clubs with some holiday adventures in Spain and France, OdS took a break from Dj'ing in 2003, returning to the dance floor in 2013. In 2014 he founded Hashtek23 soundsystem when they performed as a collective at Fuckparade 2k14 and in 2019 he started up Hashtek23 records.
OdS is known for his long (and usually) smooth transitions, musically he is known from either his former music collection from the 90's, playing retrosets that bring back smiles on people's faces. Besides the retro, most people know him from his Acid/Mental tekno sets, Hashtekstyle.."

Stefan started out at the famous Kierewiet soundsystem where he has played on many parties and teknivals. In 2014 when he met OdS, they became friends and in 2015 he decided to also become part of the Hashtek23 crew.
Stefan plays many different styles, from tekno, dnb and (early) hardcore to complete other melodious eurohouse and other retro styles.