BRUNSWICK — Toxic Audio’s rich harmonies and vocal texturing create the aural illusion of a full band, but the only instruments used are members’ dynamite voices. The Grammy-nominated group of five a cappella singers will perform at 7:30 p.m. Monday, July 27, in Pickard Theater on the Bowdoin College campus, courtesy of Maine State Music Theatre.

Toxic Audio got its start at the Orlando International Fringe Festival in 1998. Not long after its first show, Disney executives picked up the group’s production for Disney/MGM Studios. Not only did the quintet achieve success in Orlando, but the music industry began to take notice as well. In 2003, the Contemporary A Capella Society of America named its album “Chemistry” Album of the Year. An off-Broadway show was launched in 2004 and the production garnered a Drama Desk Award for Unique Theatrical Experience.

However, the pinnacle of Toxic Audio’s music career came in 2005, when work on the CD of the benefit concert of the musical “Hair” was announced as one of five nominated for Best Musical Show Album at the 48th Annual Grammy Awards.

Tickets range from $15 to $28 and are available by calling 725-8769, visiting the box office in the theater lobby or online at www.msmt.org.

Maine State Music Theatre’s summer season will close with a new musical comedy, “The Drowsy Chaperone.” In addition, MSMT will present “Schoolhouse Rock, Live!” as a part of its Theatre for Young Audiences season. Detailed show information is available on MSMT’s Web site.