There will also be street basketball matches, rap battles and a Thaitanium concert.
Founded by Way, one-third of local hip-hop trio Titanium, it's hard to believe but Never Say Cutz has now been handing out street cuts and shaves for eight years.
This Sunday (Mar 20), the barbershop will celebrate the anniversay by offering free cuts all day long at GMM Live House on CentralWorld's eigth floor.
The event will also feature a 16-team street basketball match, pop-up fashion stalls, live concerts by Thaitanium and Mild, and a special rap battle hosted by Rap is Now.
For a free cut, customers should register their name at the front of the event (10am-9pm).
In keeping with the birthday spirit, Never Say Cutz opened its 14th Bangkok branch (in Bangna) this week.