The Gozo Youth Wind Band on Monday will be presenting a concert from a stage mounted on a pontoon at Mgarr Harbour.
Stage and Proms on the Sea will feature pop singers Sarah Bonnici and Joseph Refalo.
The stage is being built to take up to 60 musicians.
Apart from on-stage lighting that will be underwater lighting features.
The audience will be able to enjoy excerpts and medleys from musicals and classic pieces performed in the BBC Proms Final Night held at The Royal Albert Hall.
The concert starts at 8.30pm. Entrance is free of charge (standing), however tickets will be available to purchase, in support of the Gozo Youth Wind Band and Orchestra, for the Premium VIP Designated Seated area.