He grew out of east London's grime scene, but 22-year-old Kwasi Danquah, better known as Tinchy Stryder, has more in common with an earlier, smoother generation of black British musicians, as well as US R'n'B giants such as Akon, whose unit-shifting powers he may just end up replicating. Last week, "Never Leave You" earned him a second UK number one. The album that spawned it, his second, is unashamedly commercial and its appeal seems effortless. Stryder's unruffled raps have an air of entitlement about them - his first chart-topper, also from Catch 22, was called "Number 1". We may have a superstar on our hands.