Muslim Fest GalaIsdays is an annual event and the culmination of the programs at MOSAIC. This year Isdays will be held with the theme "Guide The Wave of Millennial Preneurs in Halal Industry". This theme was used in order to motivate the participants to be able to provide provisions for Islamic youth in getting education, inspiration, community and special provisions in developing a halal industry.

The event contains Islamic activities which will certainly be very beneficial for the participants, such as holding tabligh akbar, karimah akbar, Islamic competitions such as Muslim preaching, posters, and creating Islamic video content, as well as talk shows or events featuring inspirational guest stars. With this event, it is hoped that it can unite Islamic youth in an activity so that it can build ties of friendship between the participants. In carrying out the competition, participants are expected to be able to develop their communication skills and creativity in making posters, videos and communicating in Muslim preacher competitions. As is known, most young people are still considered lacking in communicating in public and lacking creative thinking. Therefore, with the competition at this event, it is hoped that it can prepare young people to train public speaking and be creative when thinking so that they can indirectly help and contribute in preparing quality education for sustainable development of SDGs 4.

Apart from that, at the event there will be a bazaar held. where there are 4 fields, namely fashion and lifestyle, F&B, books, and community. The bazaar here is intended for own brands, so as much as possible it prioritizes local brands and not resellers. In this way, this event can also be a marketing event for MSMEs to the wider community who attend the event so that this can indirectly participate in economic growth by advancing existing MSMEs. Therefore, this can be one of the economic growth points in SDGs 8 (Decent Work and Economic Growth).