Premise: John Clayton Mayer ( [ ˈmeɪ.ɚ ] born October 16 , 1977 ) is an American singer-songwriter , guitarist , and producer . In 2003 , he won the Grammy Award for Best Male Pop Vocal Performance for the single `` Your Body Is a Wonderland '' . Though Mayer started his career mainly performing acoustic rock , he began moving towards the blues genre that had originally influenced him as a musician . He also won Best Male Pop Vocal Performance for `` Waiting on the World to Change '' .
Hypothesis: John Mayer is a musician.
Label: ENTAILMENT