@couriermedia: Celebrity barber Mark Maciver, aka SliderCuts, shapes up the hairlines of heavy hitters like Anthony Joshua, LeBron James, Stormzy, Reggie Yates and Janet Jackson. The unassuming east London barber has been cutting hair since he was 14 years old. But the secret behind his mega celebrity support is way more simple than you’d think; treat everyone equally🤝 #celebritybarbers #slidercuts #slidercutsstudios #inspirationalstory #successfulbusinessowner