The Illusion is an American psychedelic hard rock band formed in 1969. Known for their unique blend of heavy guitar riffs and soulful melodies, their music was a significant part of the late 60s and early 70s rock scene. The band is most recognized for their debut self-titled album, "The Illusion," which reached number 69 on the Billboard LP charts. Notable band members include John Vinci on vocals, Rich Cerniglia on guitar, and Mike Maniscalco on keyboards and vibes, contributing to their distinctive sound.