Billed as a "secret gig", the event is happening at an undisclosed location and will include special guests and DJs pumping out the music through the evening.
The gig also offers an exciting opportunity for young Belfast bands on the up. "Topman are searching for emerging Belfast talent to play alongside Jape at the event," a spokesperson told hotpress.com. "Bands simply need to hand in a demo into the Topman store to be in with a chance."
Tickets will not be available for sale. To be in with a chance of attending, log on to www.topman.com/belfast