Shazam is an app for Macs, PCs, and smartphones, best known for its music identification capabilities that has expanded to integrations with cinema, advertising, TV and retail environments. Shazam Entertainment Limited was founded in 1999 by Chris Barton, Philip Inghelbrecht, Avery Wang, and Dhiraj Mukherjee.Shazam uses a smartphone or computer's built-in microphone to gather a brief sample of audio being played.