Unbelievable a cappella from the boys from New York! All vocals and instrumentation created with their voice: percussion, bass , winds, synthesizer, trombone, harmonica, electric guitar......and then their vocal styles and harmonies: kickbutt funk, motown, jazz, blues.......incredible......the audience couldn't keep still......we were up out of our seats dancing and in the next minute sitting in awe of what we were hearing......YOU ABSOLUTELY HAVE TO TRACK THESE GUYS DOWN AND SEE THEM FOR YOURSELF!