Shatta Wale has joined Stonebwoy in shading Kelvynbwoy on the need to be humble as an upcoming musician. Stonebwoy jabbed his former signee at the just ended 4Syte Music Video Awards 2019. He noted that it’ll take Ghana 40 years to get some like he (Stonebwoy), Shatta Wale and Sarkodie. They’ve been through it all and are national assets. …