Lässig is a new party series that showcases a curated selection of quality electronic music inspired by (but not limited to) the sounds of the 90s and early 2000s. Born out of the simple joy of playing music together, Lässig is a joint effort by Amsterdam-based DJs cathü, Ketrix and Kristiaan Kiwitz. For its first edition, Lässig teams up with Oosterbar to bring you an unforgettable club night that unites like-minded dancers in an intimate and inclusive environment. The musical program will feature four high energy sets that will make you leave the dance floor with a buzz and a smile. Expect an on-point mix of energetic house, progressive house and trance. To complement the lineup, Lässig invites LENI (Lawaai Collective) to close the basement of the former zoological university with some very danceable hard groove, power house and catchy techno.