Metro's repertoire is a mix of traditional music fused with rock and pop as well as covers of popular songs worldwide.

In an a cappella fashion, Metro uses their voices to imitate percussion, trumpets, guitars and miscellaneous sound effects as well full melodies with harmony.

Eric was asked to form an a cappella quartet by a Nashville-based talent agency to provide entertainment for a six-month contract aboard Celebrity Cruises cruiseships.

Shortly thereafter, Metro Vocal Group was hired as part of the opening crew for the Celebrity Cruises Summit's inaugural voyage.

In 2002, after a successful four-year contract with Celebrity Cruises, Metro Vocal Group was hired to perform at Tokyo Disney Resort in Maihama, Japan.