From the official site:

Kwame (Rock Name - Mr. Cool)

Kwame has just recently passed his Piano Grade 6 exam with distinction. He also sings in the Gospel Choir. A keen sportsman, Kwame plays football, basketball, tennis and rugby. Rock School opened his mind to other styles of music and working with different people. He listens to R&B and Hip Hop but plays classical pieces on the piano and doesn't regard rock music as just noise anymore.