Pharrell Williams was a drummer in a band.
GWAS may refer to  :. Genome-wide association study , an examination of genetic variation across genomes. Genome-wide association study. Genome-wide association study. gwas , a Welsh term for a valet. valet. valet. Great Western Ambulance Service , the ambulance service serving Somerset , Gloucestershire , and Wiltshire. Great Western Ambulance Service. Great Western Ambulance Service