John Mayer T-Shirt Men 
 
John Mayer Licensed Merchandise 
100% Cotton T-Shirt 
  
After making his introduction as a sensitive, acoustic-styled songwriter, John Mayer steadily widened his approach over the subsequent years, encompassing everything from blues-rock to adult contemporary in the process. As adept a guitarist as a singer, Mayer gained widespread attention, spiking his songcraft with jazz chords and literate turns of phrase.