The best way to book talent - and all your other needs. Largest network of bands, entertainment, event services, photographers, party rentals, and MORE.How would you like to work with our artists? Touring Brand Partnerships Private Events. Wasserman Music is a global team of passionate, experienced, and entrepreneurial agents, career builders, and music lovers. Entertainment and Talent inquiries. If you are interested in booking entertainment, fill out our contact form here or press "Contact Now" on a specific entertainer's CEA page. Want to talk more about how I can help? ARTRA Artists Management, Chicago, Illinois. John Denver experienced his first major break in the music industry when he was chosen from 250 other hopefuls as lead singer for the popular Mitchell Trio.